diff --git a/base/applications/rapps/appinfo.cpp b/base/applications/rapps/appinfo.cpp
index 9587afb87b2..4aea019ecf2 100644
--- a/base/applications/rapps/appinfo.cpp
+++ b/base/applications/rapps/appinfo.cpp
@@ -375,18 +375,48 @@ CAvailableApplicationInfo::GetDisplayInfo(CStringW &License, CStringW &Size, CSt
     UrlDownload = m_szUrlDownload;
 }
 
+static InstallerType
+GetInstallerTypeFromString(const CStringW &Installer)
+{
+    if (Installer.CompareNoCase(L"Inno") == 0)
+        return INSTALLER_INNO;
+    if (Installer.CompareNoCase(L"NSIS") == 0)
+        return INSTALLER_NSIS;
+    return INSTALLER_UNKNOWN;
+}
+
 InstallerType
-CAvailableApplicationInfo::GetInstallerType() const
+CAvailableApplicationInfo::GetInstallerType(bool NestedType) const
 {
     CStringW str;
     m_Parser->GetString(DB_INSTALLER, str);
     if (str.CompareNoCase(DB_INSTALLER_GENERATE) == 0)
+    {
         return INSTALLER_GENERATE;
-    if (str.CompareNoCase(DB_INSTALLER_EXEINZIP) == 0)
+    }
+    else if (str.CompareNoCase(DB_INSTALLER_EXEINZIP) == 0)
+    {
+        if (NestedType)
+        {
+            CStringW nested;
+            m_Parser->GetSectionString(DB_EXEINZIPSECTION, DB_INSTALLER, nested);
+            InstallerType it = GetInstallerTypeFromString(nested);
+            if (it != INSTALLER_UNKNOWN)
+                return it;
+        }
         return INSTALLER_EXEINZIP;
+    }
     return INSTALLER_UNKNOWN;
 }
 
+InstallerType
+CAvailableApplicationInfo::GetInstallerInfo(CStringW &SilentParameters) const
+{
+    InstallerType it = GetInstallerType(true);
+    m_Parser->GetString(DB_SILENTARGS, SilentParameters);
+    return it;
+}
+
 BOOL
 CAvailableApplicationInfo::UninstallApplication(UninstallCommandFlags Flags)
 {
@@ -584,7 +614,7 @@ CInstalledApplicationInfo::GetDisplayInfo(CStringW &License, CStringW &Size, CSt
 }
 
 InstallerType
-CInstalledApplicationInfo::GetInstallerType() const
+CInstalledApplicationInfo::GetInstallerType(bool NestedType) const
 {
     CRegKey reg;
     if (reg.Open(m_hKey, GENERATE_ARPSUBKEY, KEY_READ) == ERROR_SUCCESS)
diff --git a/base/applications/rapps/geninst.cpp b/base/applications/rapps/geninst.cpp
index d643a084f06..f89d6d67b71 100644
--- a/base/applications/rapps/geninst.cpp
+++ b/base/applications/rapps/geninst.cpp
@@ -678,9 +678,10 @@ CreateUI(BOOL Silent, LPTHREAD_START_ROUTINE ThreadProc)
 }
 
 BOOL
-ExtractAndRunGeneratedInstaller(const CAvailableApplicationInfo &AppInfo, LPCWSTR Archive)
+ExtractAndRunGeneratedInstaller(const CAvailableApplicationInfo &AppInfo, LPCWSTR Archive, bool Silent)
 {
     InstallInfo Info(AppInfo.szDisplayName, *AppInfo.GetConfigParser(), Archive);
+    Info.Silent = Silent;
     g_pInfo = &Info;
     return CreateUI(Info.Silent, ExtractAndInstallThread) ? !Info.Error : FALSE;
 }
diff --git a/base/applications/rapps/gui.cpp b/base/applications/rapps/gui.cpp
index 8470ba092d1..7ceab662da5 100644
--- a/base/applications/rapps/gui.cpp
+++ b/base/applications/rapps/gui.cpp
@@ -579,7 +579,7 @@ CMainWindow::OnCommand(WPARAM wParam, LPARAM lParam)
                 {
                     if (!m_Selected.IsEmpty())
                     {
-                        if (DownloadListOfApplications(m_Selected, FALSE))
+                        if (DownloadListOfApplications(m_Selected))
                         {
                             m_Selected.RemoveAll();
                             UpdateApplicationsList(SelectedEnumType);
diff --git a/base/applications/rapps/include/appinfo.h b/base/applications/rapps/include/appinfo.h
index 171d8edce9c..7f8dd72a720 100644
--- a/base/applications/rapps/include/appinfo.h
+++ b/base/applications/rapps/include/appinfo.h
@@ -4,7 +4,6 @@
 #include <atlpath.h>
 #include <atlsimpcoll.h>
 
-
 enum LicenseType
 {
     LICENSE_NONE,
@@ -72,9 +71,9 @@ IsInstalledEnum(INT x)
 
 enum UninstallCommandFlags
 {
-    UCF_NONE   = 0x00,
-    UCF_MODIFY = 0x01,
-    UCF_SILENT = 0x02,
+    UCF_NONE        = 0x00,
+    UCF_SILENT      = 0x01,
+    UCF_MODIFY      = 0x02,
     UCF_SAMEPROCESS = 0x04,
 };
 DEFINE_ENUM_FLAG_OPERATORS(UninstallCommandFlags);
@@ -82,8 +81,11 @@ DEFINE_ENUM_FLAG_OPERATORS(UninstallCommandFlags);
 enum InstallerType
 {
     INSTALLER_UNKNOWN,
+    INSTALLER_EXEINZIP, // setup.exe we extract from a .zip file
     INSTALLER_GENERATE, // .zip file automatically converted to installer by rapps
-    INSTALLER_EXEINZIP,
+    INSTALLER_MSI,
+    INSTALLER_INNO,
+    INSTALLER_NSIS,
 };
 
 #define DB_VERSION L"Version"
@@ -95,6 +97,7 @@ enum InstallerType
 #define DB_INSTALLER_EXEINZIP L"ExeInZip"
 #define DB_SCOPE L"Scope" // User or Machine
 #define DB_SAVEAS L"SaveAs"
+#define DB_SILENTARGS L"SilentParameters"
 
 #define DB_GENINSTSECTION L"Generate"
 #define GENERATE_ARPSUBKEY L"RApps" // Our uninstall data is stored here
@@ -134,7 +137,9 @@ class CAppInfo
     virtual VOID
     GetDisplayInfo(CStringW &License, CStringW &Size, CStringW &UrlSite, CStringW &UrlDownload) = 0;
     virtual InstallerType
-    GetInstallerType() const { return INSTALLER_UNKNOWN; }
+    GetInstallerType(bool NestedType = false) const { return INSTALLER_UNKNOWN; }
+    virtual InstallerType
+    GetInstallerInfo(CStringW &SilentParameters) const { return GetInstallerType(); }
     virtual BOOL
     UninstallApplication(UninstallCommandFlags Flags) = 0;
 };
@@ -185,7 +190,9 @@ class CAvailableApplicationInfo : public CAppInfo
     virtual VOID
     GetDisplayInfo(CStringW &License, CStringW &Size, CStringW &UrlSite, CStringW &UrlDownload) override;
     virtual InstallerType
-    GetInstallerType() const override;
+    GetInstallerType(bool NestedType = false) const override;
+    virtual InstallerType
+    GetInstallerInfo(CStringW &SilentParameters) const override;
     virtual BOOL
     UninstallApplication(UninstallCommandFlags Flags) override;
 };
@@ -231,7 +238,7 @@ class CInstalledApplicationInfo : public CAppInfo
     virtual VOID
     GetDisplayInfo(CStringW &License, CStringW &Size, CStringW &UrlSite, CStringW &UrlDownload) override;
     virtual InstallerType
-    GetInstallerType() const override;
+    GetInstallerType(bool NestedType = false) const override;
     virtual BOOL
     UninstallApplication(UninstallCommandFlags Flags) override;
 };
@@ -239,6 +246,6 @@ class CInstalledApplicationInfo : public CAppInfo
 BOOL
 UninstallGenerated(CInstalledApplicationInfo &AppInfo, UninstallCommandFlags Flags);
 BOOL
-ExtractAndRunGeneratedInstaller(const CAvailableApplicationInfo &AppInfo, LPCWSTR Archive);
+ExtractAndRunGeneratedInstaller(const CAvailableApplicationInfo &AppInfo, LPCWSTR Archive, bool Silent);
 HRESULT
 ExtractArchiveForExecution(PCWSTR pszArchive, const CStringW &PackageName, CStringW &TempDir, CStringW &App);
diff --git a/base/applications/rapps/include/dialogs.h b/base/applications/rapps/include/dialogs.h
index 93b8720f497..bbdc909545d 100644
--- a/base/applications/rapps/include/dialogs.h
+++ b/base/applications/rapps/include/dialogs.h
@@ -9,9 +9,13 @@ VOID
 CreateSettingsDlg(HWND hwnd);
 
 // Download dialogs
+enum DOWNLOADAPPFLAGS {
+    DAF_SILENT  = 0x01,
+    DAF_MODAL   = 0x02,
+};
 VOID
 DownloadApplicationsDB(LPCWSTR lpUrl, BOOL IsOfficial);
 BOOL
 DownloadApplication(CAppInfo *pAppInfo);
 BOOL
-DownloadListOfApplications(const CAtlList<CAppInfo *> &AppsList, BOOL bIsModal);
+DownloadListOfApplications(const CAtlList<CAppInfo *> &AppsList, UINT Flags = 0);
diff --git a/base/applications/rapps/include/misc.h b/base/applications/rapps/include/misc.h
index b6861e7de7c..4eb47f1a020 100644
--- a/base/applications/rapps/include/misc.h
+++ b/base/applications/rapps/include/misc.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <atlstr.h>
+#include "appinfo.h"
 
 #ifdef _M_IX86
 #define CurrentArchitecture L"x86"
@@ -159,3 +160,9 @@ struct CScopedMutex
 
     bool Acquired() const { return m_hMutex != NULL; }
 };
+
+InstallerType
+GuessInstallerType(LPCWSTR Installer, UINT &ExtraInfo);
+
+BOOL
+GetSilentInstallParameters(InstallerType InstallerType, UINT ExtraInfo, LPCWSTR Installer, CStringW &Parameters);
diff --git a/base/applications/rapps/include/unattended.h b/base/applications/rapps/include/unattended.h
index dd6ea07b595..b496c289712 100644
--- a/base/applications/rapps/include/unattended.h
+++ b/base/applications/rapps/include/unattended.h
@@ -13,9 +13,9 @@
 
 const WCHAR UsageString[] = L"RAPPS \
 [/" CMD_KEY_HELP L"] \
-[/" CMD_KEY_INSTALL L" packagename] \
+[/" CMD_KEY_INSTALL L" [/S] packagename] \
 [/" CMD_KEY_UNINSTALL L" packagename|displayname] \
-[/" CMD_KEY_SETUP L" filename] \
+[/" CMD_KEY_SETUP L" [/S] filename] \
 [/" CMD_KEY_FIND L" string] \
 [/" CMD_KEY_INFO L" packagename]";
 
diff --git a/base/applications/rapps/lang/bg-BG.rc b/base/applications/rapps/lang/bg-BG.rc
index 5d8f27e4dba..2d214cb014f 100644
--- a/base/applications/rapps/lang/bg-BG.rc
+++ b/base/applications/rapps/lang/bg-BG.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Сваляне %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/cs-CZ.rc b/base/applications/rapps/lang/cs-CZ.rc
index 8d336327cfe..8f46bb365d3 100644
--- a/base/applications/rapps/lang/cs-CZ.rc
+++ b/base/applications/rapps/lang/cs-CZ.rc
@@ -85,7 +85,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Stahování %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/de-DE.rc b/base/applications/rapps/lang/de-DE.rc
index 53d4a111147..05273c79e8e 100644
--- a/base/applications/rapps/lang/de-DE.rc
+++ b/base/applications/rapps/lang/de-DE.rc
@@ -87,7 +87,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Download von %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/en-US.rc b/base/applications/rapps/lang/en-US.rc
index 499aeb5142d..2ce25a39fad 100644
--- a/base/applications/rapps/lang/en-US.rc
+++ b/base/applications/rapps/lang/en-US.rc
@@ -87,7 +87,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Downloading %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/es-ES.rc b/base/applications/rapps/lang/es-ES.rc
index 67f2a930802..54706c57305 100644
--- a/base/applications/rapps/lang/es-ES.rc
+++ b/base/applications/rapps/lang/es-ES.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Descargando %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/et-EE.rc b/base/applications/rapps/lang/et-EE.rc
index 9ab9214ea41..55032673bd0 100644
--- a/base/applications/rapps/lang/et-EE.rc
+++ b/base/applications/rapps/lang/et-EE.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "%ls allalaadimine…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/fr-FR.rc b/base/applications/rapps/lang/fr-FR.rc
index ddad6d4c90a..61d446595f3 100644
--- a/base/applications/rapps/lang/fr-FR.rc
+++ b/base/applications/rapps/lang/fr-FR.rc
@@ -87,7 +87,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Téléchargement %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/he-IL.rc b/base/applications/rapps/lang/he-IL.rc
index 90837d9fc01..a9c5beab1cc 100644
--- a/base/applications/rapps/lang/he-IL.rc
+++ b/base/applications/rapps/lang/he-IL.rc
@@ -88,7 +88,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 EXSTYLE WS_EX_LAYOUTRTL
 CAPTION "הורדה %ls…"
 FONT 8, "MS Shell Dlg"
diff --git a/base/applications/rapps/lang/hu-HU.rc b/base/applications/rapps/lang/hu-HU.rc
index 21f7b9b71ee..71f9ee09fe4 100644
--- a/base/applications/rapps/lang/hu-HU.rc
+++ b/base/applications/rapps/lang/hu-HU.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "%ls letöltése…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/id-ID.rc b/base/applications/rapps/lang/id-ID.rc
index 1dde61b4136..aea7a0154ef 100644
--- a/base/applications/rapps/lang/id-ID.rc
+++ b/base/applications/rapps/lang/id-ID.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Mengunduh %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/it-IT.rc b/base/applications/rapps/lang/it-IT.rc
index 1075574ba4c..e3b0199410f 100644
--- a/base/applications/rapps/lang/it-IT.rc
+++ b/base/applications/rapps/lang/it-IT.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Scaricamento in corso %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/ja-JP.rc b/base/applications/rapps/lang/ja-JP.rc
index a094a4074eb..bff0ba930d8 100644
--- a/base/applications/rapps/lang/ja-JP.rc
+++ b/base/applications/rapps/lang/ja-JP.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "%ls をダウンロード中..."
 FONT 9, "MS UI Gothic"
 BEGIN
diff --git a/base/applications/rapps/lang/no-NO.rc b/base/applications/rapps/lang/no-NO.rc
index b271227c78a..af86ca612fe 100644
--- a/base/applications/rapps/lang/no-NO.rc
+++ b/base/applications/rapps/lang/no-NO.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Lastet ned %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/pl-PL.rc b/base/applications/rapps/lang/pl-PL.rc
index 1aa2fcc6135..100ec0223bd 100644
--- a/base/applications/rapps/lang/pl-PL.rc
+++ b/base/applications/rapps/lang/pl-PL.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Pobieranie %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/pt-BR.rc b/base/applications/rapps/lang/pt-BR.rc
index 807615a63ca..bb26ae1ac84 100644
--- a/base/applications/rapps/lang/pt-BR.rc
+++ b/base/applications/rapps/lang/pt-BR.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Download %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/pt-PT.rc b/base/applications/rapps/lang/pt-PT.rc
index dfdd2850137..d75033d4368 100644
--- a/base/applications/rapps/lang/pt-PT.rc
+++ b/base/applications/rapps/lang/pt-PT.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "A carregar %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/ro-RO.rc b/base/applications/rapps/lang/ro-RO.rc
index ba9421f37fe..ac3ba3e2043 100644
--- a/base/applications/rapps/lang/ro-RO.rc
+++ b/base/applications/rapps/lang/ro-RO.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "În curs de descărcare %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/ru-RU.rc b/base/applications/rapps/lang/ru-RU.rc
index 6b119334886..b6bc6032e7a 100644
--- a/base/applications/rapps/lang/ru-RU.rc
+++ b/base/applications/rapps/lang/ru-RU.rc
@@ -89,7 +89,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Загрузка %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/sk-SK.rc b/base/applications/rapps/lang/sk-SK.rc
index 44932a0b4e3..a0367e27a1b 100644
--- a/base/applications/rapps/lang/sk-SK.rc
+++ b/base/applications/rapps/lang/sk-SK.rc
@@ -85,7 +85,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Sťahujem %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/sq-AL.rc b/base/applications/rapps/lang/sq-AL.rc
index 77feaa24eda..34f7009f7b5 100644
--- a/base/applications/rapps/lang/sq-AL.rc
+++ b/base/applications/rapps/lang/sq-AL.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Shkarko %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/sv-SE.rc b/base/applications/rapps/lang/sv-SE.rc
index c14b19adb51..5233cb3ddf6 100644
--- a/base/applications/rapps/lang/sv-SE.rc
+++ b/base/applications/rapps/lang/sv-SE.rc
@@ -84,7 +84,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Ladda ner %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/tr-TR.rc b/base/applications/rapps/lang/tr-TR.rc
index c33ab128536..44e3b69161b 100644
--- a/base/applications/rapps/lang/tr-TR.rc
+++ b/base/applications/rapps/lang/tr-TR.rc
@@ -86,7 +86,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "İndiriliyor %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/uk-UA.rc b/base/applications/rapps/lang/uk-UA.rc
index 35cb17f24f2..5a5a8eb1775 100644
--- a/base/applications/rapps/lang/uk-UA.rc
+++ b/base/applications/rapps/lang/uk-UA.rc
@@ -87,7 +87,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "Завантаження %ls…"
 FONT 8, "MS Shell Dlg"
 BEGIN
diff --git a/base/applications/rapps/lang/zh-CN.rc b/base/applications/rapps/lang/zh-CN.rc
index 7eed7260cbf..ef6f55c720e 100644
--- a/base/applications/rapps/lang/zh-CN.rc
+++ b/base/applications/rapps/lang/zh-CN.rc
@@ -88,7 +88,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "正在下载 %ls…"
 FONT 9, "宋体"
 BEGIN
diff --git a/base/applications/rapps/lang/zh-HK.rc b/base/applications/rapps/lang/zh-HK.rc
index 2340b0963c6..7a59c3bed5d 100644
--- a/base/applications/rapps/lang/zh-HK.rc
+++ b/base/applications/rapps/lang/zh-HK.rc
@@ -85,7 +85,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "正在下載 %ls…"
 FONT 9, "新細明體"
 BEGIN
diff --git a/base/applications/rapps/lang/zh-TW.rc b/base/applications/rapps/lang/zh-TW.rc
index a3befd8880d..e22964561e4 100644
--- a/base/applications/rapps/lang/zh-TW.rc
+++ b/base/applications/rapps/lang/zh-TW.rc
@@ -85,7 +85,7 @@ BEGIN
 END
 
 IDD_DOWNLOAD_DIALOG DIALOGEX 0, 0, 220, 220
-STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION | WS_VISIBLE
+STYLE DS_SHELLFONT | DS_CENTER | WS_POPUPWINDOW | WS_CAPTION
 CAPTION "正在下載 %ls…"
 FONT 9, "新細明體"
 BEGIN
diff --git a/base/applications/rapps/loaddlg.cpp b/base/applications/rapps/loaddlg.cpp
index 66d4fcca1d8..6021b672a5c 100644
--- a/base/applications/rapps/loaddlg.cpp
+++ b/base/applications/rapps/loaddlg.cpp
@@ -137,13 +137,16 @@ struct DownloadInfo
     DownloadInfo() :  DLType(DLTYPE_APPLICATION), IType(INSTALLER_UNKNOWN), SizeInBytes(0)
     {
     }
-    DownloadInfo(const CAppInfo &AppInfo) : DLType(DLTYPE_APPLICATION)
+    DownloadInfo(const CAppInfo &AppInfo, UINT DAF = 0) : DLType(DLTYPE_APPLICATION), Flags(DAF)
     {
         AppInfo.GetDownloadInfo(szUrl, szSHA1, SizeInBytes);
         szName = AppInfo.szDisplayName;
         IType = AppInfo.GetInstallerType();
         szPackageName = AppInfo.szIdentifier;
 
+        if (Flags & DAF_SILENT)
+            IExecType = AppInfo.GetInstallerInfo(szSilentInstallArgs);
+
         CConfigParser *cfg = static_cast<const CAvailableApplicationInfo&>(AppInfo).GetConfigParser();
         if (cfg)
             cfg->GetString(DB_SAVEAS, szFileName);
@@ -156,11 +159,14 @@ struct DownloadInfo
 
     DownloadType DLType;
     InstallerType IType;
+    InstallerType IExecType = INSTALLER_UNKNOWN;
+    UINT Flags = 0;
     CStringW szUrl;
     CStringW szName;
     CStringW szSHA1;
     CStringW szPackageName;
     CStringW szFileName;
+    CStringW szSilentInstallArgs;
     ULONG SizeInBytes;
 };
 
@@ -476,9 +482,9 @@ public:
     CDownloadManager() : m_hDlg(NULL), m_Threads(0), m_Index(0), m_bCancelled(FALSE) {}
 
     static CDownloadManager*
-    CreateInstanceHelper(BOOL Modal)
+    CreateInstanceHelper(UINT Flags)
     {
-        if (!Modal)
+        if (!(Flags & DAF_MODAL))
         {
             CDownloadManager* pExisting = CDownloadManager::FindInstance();
             if (pExisting)
@@ -490,7 +496,8 @@ public:
         CComPtr<CDownloadManager> obj;
         if (FAILED(ShellObjectCreator(obj)))
             return NULL;
-        obj->m_bModal = Modal;
+        obj->m_fDaf = Flags;
+        obj->m_bModal = !!(Flags & DAF_MODAL);
         return obj.Detach();
     }
 
@@ -507,7 +514,7 @@ public:
     static CDownloadManager*
     FindInstance()
     {
-        if (g_hDownloadWnd)
+        if (g_hDownloadWnd && IsWindowVisible(g_hDownloadWnd))
             return (CDownloadManager*)SendMessageW(g_hDownloadWnd, WM_GETINSTANCE, 0, 0);
         return NULL;
     }
@@ -518,6 +525,12 @@ public:
         return !IsWindow(m_hDlg) || SendMessageW(m_hDlg, WM_ISCANCELLED, 0, 0);
     }
 
+    BOOL
+    IsSilentDialog()
+    {
+        return m_fDaf & DAF_SILENT;
+    }
+
     void StartWorkerThread();
     void Add(const DownloadInfo &Info);
     void Show();
@@ -538,6 +551,7 @@ protected:
     UINT m_Index;
     BOOL m_bCancelled;
     BOOL m_bModal;
+    UINT m_fDaf = 0;
     WCHAR m_szCaptionFmt[100];
     ATL::CSimpleArray<DownloadInfo> m_List;
     CDowloadingAppsListView m_ListView;
@@ -573,10 +587,17 @@ CDownloadManager::Add(const DownloadInfo &Info)
 void
 CDownloadManager::Show()
 {
-    if (m_bModal)
+    HWND hDlg = NULL;
+    const BOOL bSilent = IsSilentDialog(), bModal = m_bModal;
+    if (bModal && !bSilent)
         DialogBoxParamW(hInst, MAKEINTRESOURCEW(IDD_DOWNLOAD_DIALOG), hMainWnd, DlgProc, (LPARAM)this);
     else if (!m_hDlg || !IsWindow(m_hDlg))
-        CreateDialogParamW(hInst, MAKEINTRESOURCEW(IDD_DOWNLOAD_DIALOG), hMainWnd, DlgProc, (LPARAM)this);
+        hDlg = CreateDialogParamW(hInst, MAKEINTRESOURCEW(IDD_DOWNLOAD_DIALOG), hMainWnd, DlgProc, (LPARAM)this);
+
+    // A DialogBox dialog cannot be invisible, it is forced visible after WM_INITDIALOG returns.
+    // We therefore use a modeless dialog when we are both modal and silent.
+    for (MSG msg; bModal && bSilent && hDlg && GetMessageW(&msg, NULL, 0, 0);)
+        DispatchMessage(&msg);
 }
 
 INT_PTR CALLBACK
@@ -641,7 +662,7 @@ CDownloadManager::RealDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam
                 return FALSE;
             m_ListView.LoadList(m_List);
 
-            ShowWindow(hDlg, SW_SHOW);
+            ShowWindow(hDlg, IsSilentDialog() ? SW_HIDE : SW_SHOW);
             StartWorkerThread();
             return TRUE;
         }
@@ -658,7 +679,7 @@ CDownloadManager::RealDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam
             m_bCancelled = TRUE;
             if (m_ProgressBar)
                 m_ProgressBar.UnsubclassWindow(TRUE);
-            return m_bModal ? ::EndDialog(hDlg, 0) : ::DestroyWindow(hDlg);
+            return m_bModal && !IsSilentDialog() ? ::EndDialog(hDlg, 0) : ::DestroyWindow(hDlg);
 
         case WM_DESTROY:
             if (g_hDownloadWnd == hDlg)
@@ -666,6 +687,8 @@ CDownloadManager::RealDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam
             g_Busy--;
             if (hMainWnd)
                 PostMessage(hMainWnd, WM_NOTIFY_OPERATIONCOMPLETED, 0, 0);
+            if (m_bModal && IsSilentDialog())
+                PostQuitMessage(0);
             Release();
             break;
 
@@ -1058,6 +1081,7 @@ run:
     // run it
     if (Info.DLType == DLTYPE_APPLICATION)
     {
+        BOOL bSilentInstall = Info.Flags & DAF_SILENT;
         CStringW app, params, tempdir;
         SHELLEXECUTEINFOW shExInfo = { sizeof(shExInfo), SEE_MASK_NOCLOSEPROCESS, hDlg };
         shExInfo.lpVerb = L"open";
@@ -1067,9 +1091,8 @@ run:
 
         if (Info.IType == INSTALLER_GENERATE)
         {
-            params = L"/" + CStringW(CMD_KEY_GENINST) + L" \"" +
-                     Info.szPackageName + L"\" \"" +
-                     CStringW(shExInfo.lpFile) + L"\"";
+            params = L"/" CMD_KEY_GENINST + CStringW(bSilentInstall ? L" /S" : L"") +
+                     L" \"" + Info.szPackageName + L"\" \"" + shExInfo.lpFile + L"\"";
             shExInfo.lpParameters = params;
             shExInfo.lpFile = app.GetBuffer(MAX_PATH);
             GetModuleFileNameW(NULL, const_cast<LPWSTR>(shExInfo.lpFile), MAX_PATH);
@@ -1086,6 +1109,30 @@ run:
             shExInfo.lpFile = app;
         }
 
+        if (bSilentInstall)
+        {
+            if (!Info.szSilentInstallArgs.IsEmpty())
+            {
+                // The package wants to force specific parameters
+                shExInfo.lpParameters = Info.szSilentInstallArgs.GetString();
+            }
+            else
+            {
+                UINT extrainfo = 0;
+                InstallerType it = Info.IExecType;
+
+                if (it == INSTALLER_UNKNOWN || it == INSTALLER_EXEINZIP)
+                    it = GuessInstallerType(shExInfo.lpFile, extrainfo);
+
+                if (GetSilentInstallParameters(it, extrainfo, shExInfo.lpFile, params))
+                {
+                    shExInfo.lpParameters = params;
+                    if (it == INSTALLER_MSI)
+                        shExInfo.lpFile = L"msiexec.exe"; // params contains the .msi path
+                }
+            }
+        }
+
         /* FIXME: Do we want to log installer status? */
         WriteLogMessage(EVENTLOG_SUCCESS, MSG_SUCCESS_INSTALL, Info.szName);
 
@@ -1142,19 +1189,19 @@ end:
 }
 
 BOOL
-DownloadListOfApplications(const CAtlList<CAppInfo *> &AppsList, BOOL bIsModal)
+DownloadListOfApplications(const CAtlList<CAppInfo *> &AppsList, UINT Flags)
 {
     if (AppsList.IsEmpty())
         return FALSE;
 
     CComPtr<CDownloadManager> pDM;
-    if (!CDownloadManager::CreateInstance(bIsModal, pDM))
+    if (!CDownloadManager::CreateInstance(Flags, pDM))
         return FALSE;
 
     for (POSITION it = AppsList.GetHeadPosition(); it;)
     {
         const CAppInfo *Info = AppsList.GetNext(it);
-        pDM->Add(DownloadInfo(*Info));
+        pDM->Add(DownloadInfo(*Info, Flags));
     }
     pDM->Show();
     return TRUE;
@@ -1163,21 +1210,19 @@ DownloadListOfApplications(const CAtlList<CAppInfo *> &AppsList, BOOL bIsModal)
 BOOL
 DownloadApplication(CAppInfo *pAppInfo)
 {
-    const bool bModal = false;
     if (!pAppInfo)
         return FALSE;
 
     CAtlList<CAppInfo*> list;
     list.AddTail(pAppInfo);
-    return DownloadListOfApplications(list, bModal);
+    return DownloadListOfApplications(list);
 }
 
 VOID
 DownloadApplicationsDB(LPCWSTR lpUrl, BOOL IsOfficial)
 {
-    const bool bModal = true;
     CComPtr<CDownloadManager> pDM;
-    if (!CDownloadManager::CreateInstance(bModal, pDM))
+    if (!CDownloadManager::CreateInstance(DAF_MODAL, pDM))
         return;
 
     DownloadInfo DatabaseDLInfo;
diff --git a/base/applications/rapps/misc.cpp b/base/applications/rapps/misc.cpp
index 0965cc945d0..0b28ec09985 100644
--- a/base/applications/rapps/misc.cpp
+++ b/base/applications/rapps/misc.cpp
@@ -583,3 +583,123 @@ GetProgramFilesPath(CStringW &Path, BOOL PerUser, HWND hwnd)
     }
     return hr;
 }
+
+static BOOL
+ReadAt(HANDLE Handle, UINT Offset, LPVOID Buffer, UINT Size)
+{
+    OVERLAPPED ol = {};
+    ol.Offset = Offset;
+    DWORD cb;
+    return ReadFile(Handle, Buffer, Size, &cb, &ol) && cb == Size;
+}
+
+InstallerType
+GuessInstallerType(LPCWSTR Installer, UINT &ExtraInfo)
+{
+    ExtraInfo = 0;
+    InstallerType it = INSTALLER_UNKNOWN;
+
+    HANDLE hFile = CreateFileW(Installer, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, 0, NULL);
+    if (hFile == INVALID_HANDLE_VALUE)
+        return it;
+
+    BYTE buf[0x30 + 12];
+    if (!ReadAt(hFile, 0, buf, sizeof(buf)))
+        goto done;
+
+    if (buf[0] == 0xD0 && buf[1] == 0xCF && buf[2] == 0x11 && buf[3] == 0xE0)
+    {
+        if (!StrCmpIW(L".msi", PathFindExtensionW(Installer)))
+        {
+            it = INSTALLER_MSI;
+            goto done;
+        }
+    }
+
+    if (buf[0] != 'M' || buf[1] != 'Z')
+        goto done;
+
+    // <= Inno 5.1.4
+    {
+        UINT sig[3];
+        C_ASSERT(sizeof(buf) >= 0x30 + sizeof(sig));
+        CopyMemory(sig, buf + 0x30, sizeof(sig));
+        if (sig[0] == 0x6F6E6E49 && sig[1] == ~sig[2])
+        {
+            it = INSTALLER_INNO;
+            ExtraInfo = 1;
+            goto done;
+        }
+    }
+
+    // NSIS 1.6+
+    {
+        UINT nsis[1+1+3+1+1], nsisskip = 512;
+        for (UINT nsisoffset = nsisskip * 20; nsisoffset < 1024 * 1024 * 50; nsisoffset += nsisskip)
+        {
+            if (ReadAt(hFile, nsisoffset, nsis, sizeof(nsis)) && nsis[1] == 0xDEADBEEF)
+            {
+                if (nsis[2] == 0x6C6C754E && nsis[3] == 0x74666F73 && nsis[4] == 0x74736E49)
+                {
+                    it = INSTALLER_NSIS;
+                    goto done;
+                }
+            }
+        }
+    }
+
+    if (HMODULE hMod = LoadLibraryEx(Installer, NULL, LOAD_LIBRARY_AS_DATAFILE))
+    {
+        // Inno
+        enum { INNORCSETUPLDR = 11111 };
+        HGLOBAL hGlob;
+        HRSRC hRsrc = FindResourceW(hMod, MAKEINTRESOURCE(INNORCSETUPLDR), RT_RCDATA);
+        if (hRsrc && (hGlob = LoadResource(hMod, hRsrc)) != NULL)
+        {
+            if (BYTE *p = (BYTE*)LockResource(hGlob))
+            {
+                if (p[0] == 'r' && p[1] == 'D' && p[2] == 'l' && p[3] == 'P' && p[4] == 't' && p[5] == 'S')
+                    it = INSTALLER_INNO;
+                UnlockResource((void*)p);
+            }
+        }
+        FreeLibrary(hMod);
+    }
+done:
+    CloseHandle(hFile);
+    return it;
+}
+
+BOOL
+GetSilentInstallParameters(InstallerType InstallerType, UINT ExtraInfo, LPCWSTR Installer, CStringW &Parameters)
+{
+    switch (InstallerType)
+    {
+        case INSTALLER_MSI:
+        {
+            Parameters.Format(L"/i \"%s\" /qn", Installer);
+            return TRUE;
+        }
+
+        case INSTALLER_INNO:
+        {
+            LPCWSTR pszInnoParams = L"/SILENT /VERYSILENT /SP-";
+            if (ExtraInfo)
+                Parameters.Format(L"%s", pszInnoParams);
+            else
+                Parameters.Format(L"%s /SUPPRESSMSGBOXES", pszInnoParams); // https://jrsoftware.org/files/is5.5-whatsnew.htm
+            return TRUE;
+        }
+
+        case INSTALLER_NSIS:
+        {
+            Parameters = L"/S";
+            return TRUE;
+        }
+
+        default:
+        {
+            return FALSE;
+        }
+    }
+}
diff --git a/base/applications/rapps/unattended.cpp b/base/applications/rapps/unattended.cpp
index fd115385638..0efd9b12c7b 100644
--- a/base/applications/rapps/unattended.cpp
+++ b/base/applications/rapps/unattended.cpp
@@ -62,6 +62,13 @@ SearchForAppWithDisplayName(CAppDB &db, AppsCategories Type, LPCWSTR Name)
 static BOOL
 HandleInstallCommand(CAppDB *db, LPWSTR szCommand, int argcLeft, LPWSTR *argvLeft)
 {
+    UINT flags = DAF_MODAL;
+    if (argcLeft >= 1 && !StrCmpIW(L"/S", argvLeft[0]))
+    {
+        flags |= DAF_SILENT;
+        argvLeft = &argvLeft[1], --argcLeft;
+    }
+
     if (argcLeft < 1)
     {
         InitRappsConsole();
@@ -80,12 +87,19 @@ HandleInstallCommand(CAppDB *db, LPWSTR szCommand, int argcLeft, LPWSTR *argvLef
         }
     }
 
-    return DownloadListOfApplications(Applications, TRUE);
+    return DownloadListOfApplications(Applications, flags);
 }
 
 static BOOL
 HandleSetupCommand(CAppDB *db, LPWSTR szCommand, int argcLeft, LPWSTR *argvLeft)
 {
+    UINT flags = DAF_MODAL;
+    if (argcLeft >= 1 && !StrCmpIW(L"/S", argvLeft[0]))
+    {
+        flags |= DAF_SILENT;
+        argvLeft = &argvLeft[1], --argcLeft;
+    }
+
     if (argcLeft != 1)
     {
         InitRappsConsole();
@@ -118,7 +132,7 @@ HandleSetupCommand(CAppDB *db, LPWSTR szCommand, int argcLeft, LPWSTR *argvLeft)
     }
     SetupCloseInfFile(InfHandle);
 
-    return DownloadListOfApplications(Applications, TRUE);
+    return DownloadListOfApplications(Applications, flags);
 }
 
 static BOOL
@@ -200,6 +214,14 @@ HandleUninstallCommand(CAppDB &db, UINT argcLeft, LPWSTR *argvLeft)
 static BOOL
 HandleGenerateInstallerCommand(CAppDB &db, UINT argcLeft, LPWSTR *argvLeft)
 {
+    bool bSilent = false;
+    if (argcLeft && !StrCmpIW(argvLeft[0], L"/S"))
+    {
+        bSilent = true;
+        --argcLeft;
+        ++argvLeft;
+    }
+
     if (argcLeft != 2)
         return FALSE;
 
@@ -207,7 +229,7 @@ HandleGenerateInstallerCommand(CAppDB &db, UINT argcLeft, LPWSTR *argvLeft)
     if (!pAI)
         return FALSE;
 
-    return ExtractAndRunGeneratedInstaller(*pAI, argvLeft[1]);
+    return ExtractAndRunGeneratedInstaller(*pAI, argvLeft[1], bSilent);
 }
 
 static BOOL