diff --git a/reactos/boot/bootdata/hivecls.inf b/reactos/boot/bootdata/hivecls.inf
index 1690d641235..303c034b45c 100644
--- a/reactos/boot/bootdata/hivecls.inf
+++ b/reactos/boot/bootdata/hivecls.inf
@@ -4,6 +4,11 @@ Signature="$ReactOS$
 [AddReg]
 HKLM,"SOFTWARE\Classes",,0x00000010
 
+
+; Default key
+;HKCR,"*","",0x00000000,""
+;HKCR,"*\shellex\ContextMenuHandlers\Open With","",0x00000000,"{09799AFB-AD67-11d1-ABCD-00C04FC30936}"
+
 ; Folders
 HKCR,"Folder","",0x00000000,"Folder"
 ;HKCR,"Folder\Defaulticon","",0x00000000,"%SystemRoot%\system32\shell32.dll,-4"
@@ -213,6 +218,14 @@ HKCR,"CLSID\{4657278A-411B-11d2-839A-00C04FD918D0}","",0x00000000,"Shell Drag an
 HKCR,"CLSID\{4657278A-411B-11d2-839A-00C04FD918D0}\InProcServer32","",0x00020000,"%SystemRoot%\system32\shell32.dll"
 HKCR,"CLSID\{4657278A-411B-11d2-839A-00C04FD918D0}\InProcServer32","ThreadingModel",0x00000000,"Apartment"
 
+; Open With shell extension
+;HKCR,"CLSID\{09799AFB-AD67-11d1-ABCD-00C04FC30936}","",0x00000000,"Open With Context Menu Handler"
+;HKCR,"CLSID\{09799AFB-AD67-11d1-ABCD-00C04FC30936}\InProcServer32","",0x00000000,"shell32.dll"
+;HKCR,"CLSID\{09799AFB-AD67-11d1-ABCD-00C04FC30936}\InProcServer32","ThreadingModel",0x00000000,"Apartment"
+;HKCR,"CLSID\{09799AFB-AD67-11d1-ABCD-00C04FC30936}\shellex\MayChangeDefaultMenu","",0x00000000,""
+;HKCR,"SystemFileAssociations","",0x00000000,""
+
+
 ; Recycle bin is not implemented 
 ;HKCR,"CLSID\{645FF040-5081-101B-9F08-00AA002F954E}","",0x00000000,"Recycle Bin"
 ;HKCR,"CLSID\{645FF040-5081-101B-9F08-00AA002F954E}","LocalizedString",0x00020000,"@%SystemRoot%\system32\shell32.dll,-8964"
diff --git a/reactos/boot/bootdata/hivedef.inf b/reactos/boot/bootdata/hivedef.inf
index 8670afda9c8..8a199896edc 100644
--- a/reactos/boot/bootdata/hivedef.inf
+++ b/reactos/boot/bootdata/hivedef.inf
@@ -47,6 +47,7 @@ HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion",,0x00000012
 HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer",,0x00000012
 HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders",,0x00000012
 HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders",,0x00000012
+;HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts",,0x00000012
 
 
 HKCU,"SOFTWARE\Microsoft\Windows NT",,0x00000012