diff --git a/reactos/dll/ntdll/CMakeLists.txt b/reactos/dll/ntdll/CMakeLists.txt
index 3483aace0e5..aefdaf5c400 100644
--- a/reactos/dll/ntdll/CMakeLists.txt
+++ b/reactos/dll/ntdll/CMakeLists.txt
@@ -20,6 +20,7 @@ list(APPEND SOURCE
     ldr/ldrpe.c
     ldr/ldrutils.c
     rtl/libsupp.c
+    rtl/uilist.c
     rtl/version.c
     etw/trace.c
     include/ntdll.h)
diff --git a/reactos/dll/ntdll/def/ntdll.spec b/reactos/dll/ntdll/def/ntdll.spec
index d55c41fe303..5c54b4c8e5a 100644
--- a/reactos/dll/ntdll/def/ntdll.spec
+++ b/reactos/dll/ntdll/def/ntdll.spec
@@ -502,7 +502,7 @@
 501 stdcall RtlConvertSharedToExclusive(ptr)
 502 stdcall RtlConvertSidToUnicodeString(ptr ptr long)
 503 stdcall RtlConvertToAutoInheritSecurityObject(ptr ptr ptr ptr long ptr)
-# stdcall RtlConvertUiListToApiList
+504 stdcall RtlConvertUiListToApiList(ptr ptr long)
 505 stdcall -arch=win32 -ret64 RtlConvertUlongToLargeInteger(long)
 506 stdcall RtlCopyLuid(ptr ptr)
 507 stdcall RtlCopyLuidAndAttributesArray(long ptr ptr)
diff --git a/reactos/dll/ntdll/rtl/uilist.c b/reactos/dll/ntdll/rtl/uilist.c
new file mode 100644
index 00000000000..3c78cb55e8c
--- /dev/null
+++ b/reactos/dll/ntdll/rtl/uilist.c
@@ -0,0 +1,40 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS NT User-Mode DLL
+ * FILE:            lib/ntdll/rtl/uilist.c
+ * PURPOSE:         RTL UI to API network computers list conversion.
+ *                  Helper for NETAPI32.DLL
+ * PROGRAMMERS:     Hermes Belusca-Maito
+ */
+
+/* INCLUDES *****************************************************************/
+
+#include <ntdll.h>
+
+#define NDEBUG
+#include <debug.h>
+
+/* FUNCTIONS ***************************************************************/
+
+/*
+ * @unimplemented
+ */
+NTSTATUS
+NTAPI
+RtlConvertUiListToApiList(
+    IN PUNICODE_STRING UiList,
+    OUT PUNICODE_STRING ApiList,
+    IN BOOLEAN SpaceAsSeparator)
+{
+    DPRINT1("RtlConvertUiListToApiList(%wZ, 0x%p, %s) called\n",
+            UiList, &ApiList, SpaceAsSeparator ? "true" : "false");
+    UNIMPLEMENTED;
+    /*
+     * Experiments show that returning a success code but setting the
+     * ApiList length to zero is better than returning a failure code.
+     */
+    RtlInitEmptyUnicodeString(ApiList, NULL, 0);
+    return STATUS_SUCCESS;
+}
+
+/* EOF */
diff --git a/reactos/win32ss/user/user32/misc/winsta.c b/reactos/win32ss/user/user32/misc/winsta.c
index f416dd117f7..a5ecc5cd629 100644
--- a/reactos/win32ss/user/user32/misc/winsta.c
+++ b/reactos/win32ss/user/user32/misc/winsta.c
@@ -285,6 +285,16 @@ EnumWindowStationsW(WINSTAENUMPROCW EnumFunc,
 }
 
 
+/*
+ * @unimplemented on Win32k side
+ */
+BOOL WINAPI
+GetWinStationInfo(PVOID pUnknown)
+{
+    return (BOOL)NtUserCallOneParam((DWORD_PTR)pUnknown, ONEPARAM_ROUTINE_GETWINSTAINFO);
+}
+
+
 /*
  * @implemented
  */
diff --git a/reactos/win32ss/user/user32/user32.spec b/reactos/win32ss/user/user32/user32.spec
index 179fc179245..79c0693ac96 100644
--- a/reactos/win32ss/user/user32/user32.spec
+++ b/reactos/win32ss/user/user32/user32.spec
@@ -366,7 +366,7 @@
 363 stdcall GetUserObjectInformationA(long long ptr long ptr)
 364 stdcall GetUserObjectInformationW(long long ptr long ptr) NtUserGetObjectInformation
 365 stdcall GetUserObjectSecurity (long ptr ptr long ptr)
-# GetWinStationInfo
+366 stdcall GetWinStationInfo(ptr)
 367 stdcall GetWindow(long long)
 368 stdcall GetWindowContextHelpId(long)
 369 stdcall GetWindowDC(long) NtUserGetWindowDC