diff --git a/import/OpenXDK/include/xboxkrnl/rtl.h b/import/OpenXDK/include/xboxkrnl/rtl.h
index c0fc4e2f2..498936a2d 100644
--- a/import/OpenXDK/include/xboxkrnl/rtl.h
+++ b/import/OpenXDK/include/xboxkrnl/rtl.h
@@ -27,12 +27,21 @@ XBSYSAPI EXPORTNUM(260) NTSTATUS NTAPI RtlAnsiStringToUnicodeString
 // ******************************************************************
 XBSYSAPI EXPORTNUM(261) NTSTATUS NTAPI RtlAppendStringToString
 (
-  IN PSTRING    Destination,
+  IN OUT PSTRING    Destination,
   IN PSTRING    Source
 );
 
-XBSYSAPI VOID *RtlAppendUnicodeStringToString;
-XBSYSAPI VOID *RtlAppendUnicodeToString;
+XBSYSAPI EXPORTNUM(262) NTSTATUS NTAPI RtlAppendUnicodeStringToString
+(
+	IN OUT PUNICODE_STRING Destination,
+	IN PUNICODE_STRING Source
+);
+
+XBSYSAPI EXPORTNUM(263) NTSTATUS NTAPI RtlAppendUnicodeToString
+(
+	IN OUT PUNICODE_STRING Destination,
+	IN LPCWSTR Source
+);
 
 // ******************************************************************
 // * RtlAssert
diff --git a/import/OpenXDK/include/xboxkrnl/xbox.h b/import/OpenXDK/include/xboxkrnl/xbox.h
index 6a1c2fea9..18c63be99 100644
--- a/import/OpenXDK/include/xboxkrnl/xbox.h
+++ b/import/OpenXDK/include/xboxkrnl/xbox.h
@@ -54,7 +54,7 @@ XBSYSAPI EXPORTNUM(4) VOID NTAPI AvSetSavedDataAddress
 // ******************************************************************
 XBSYSAPI EXPORTNUM(35) DWORD NTAPI FscGetCacheSize();
 
-XBSYSAPI VOID *FscInvalidateIdleBlocks;
+XBSYSAPI EXPORTNUM(36) VOID NTAPI FscInvalidateIdleBlocks();
 
 // ******************************************************************
 // * FscSetCacheSize
diff --git a/import/OpenXDK/include/xboxkrnl/xboxkrnl.h b/import/OpenXDK/include/xboxkrnl/xboxkrnl.h
index 534741437..b0ad1e1e0 100644
--- a/import/OpenXDK/include/xboxkrnl/xboxkrnl.h
+++ b/import/OpenXDK/include/xboxkrnl/xboxkrnl.h
@@ -112,6 +112,8 @@ typedef HANDLE             *PHANDLE;
 typedef CHAR *PCHAR, *LPCH, *PCH;
 typedef CONST CHAR *LPCCH, *PCCH;
 
+typedef /*_Null_terminated_*/ CONST WCHAR *LPCWSTR, *PCWSTR;
+
 
 // ******************************************************************
 // * LPSECURITY_ATTRIBUTES
diff --git a/src/CxbxKrnl/EmuKrnlFs.cpp b/src/CxbxKrnl/EmuKrnlFs.cpp
index 8989b4e80..81c2304c1 100644
--- a/src/CxbxKrnl/EmuKrnlFs.cpp
+++ b/src/CxbxKrnl/EmuKrnlFs.cpp
@@ -58,6 +58,14 @@ XBSYSAPI EXPORTNUM(35) xboxkrnl::DWORD NTAPI xboxkrnl::FscGetCacheSize()
 	return 64 * 1024;
 }
 
+XBSYSAPI EXPORTNUM(36) VOID NTAPI xboxkrnl::FscInvalidateIdleBlocks()
+{
+	LOG_FUNC();
+
+	UNIMPLEMENTED();
+}
+
+
 // ******************************************************************
 // * 0x0025 - FscSetCacheSize
 // ******************************************************************
diff --git a/src/CxbxKrnl/EmuNtDll.cpp b/src/CxbxKrnl/EmuNtDll.cpp
index 7efcca090..7d91d07bd 100644
--- a/src/CxbxKrnl/EmuNtDll.cpp
+++ b/src/CxbxKrnl/EmuNtDll.cpp
@@ -52,6 +52,7 @@ static HMODULE hNtDll = GetModuleHandle("ntdll");
 NtDll::FPTR_RtlInitAnsiString              NtDll::RtlInitAnsiString            = (NtDll::FPTR_RtlInitAnsiString)GetProcAddress(hNtDll, "RtlInitAnsiString");
 NtDll::FPTR_RtlInitUnicodeString           NtDll::RtlInitUnicodeString         = (NtDll::FPTR_RtlInitUnicodeString)GetProcAddress(hNtDll, "RtlInitUnicodeString");
 NtDll::FPTR_RtlAnsiStringToUnicodeString   NtDll::RtlAnsiStringToUnicodeString = (NtDll::FPTR_RtlAnsiStringToUnicodeString)GetProcAddress(hNtDll, "RtlAnsiStringToUnicodeString");
+NtDll::FPTR_RtlAppendStringToString        NtDll::RtlAppendStringToString      = (NtDll::FPTR_RtlAppendStringToString)GetProcAddress(hNtDll, "RtlAppendStringToString");
 NtDll::FPTR_RtlUnicodeStringToAnsiString   NtDll::RtlUnicodeStringToAnsiString = (NtDll::FPTR_RtlUnicodeStringToAnsiString)GetProcAddress(hNtDll, "RtlUnicodeStringToAnsiString");
 NtDll::FPTR_RtlFreeAnsiString              NtDll::RtlFreeAnsiString            = (NtDll::FPTR_RtlFreeAnsiString)GetProcAddress(hNtDll, "RtlFreeAnsiString");
 NtDll::FPTR_RtlNtStatusToDosError          NtDll::RtlNtStatusToDosError        = (NtDll::FPTR_RtlNtStatusToDosError)GetProcAddress(hNtDll, "RtlNtStatusToDosError");
diff --git a/src/CxbxKrnl/EmuNtDll.h b/src/CxbxKrnl/EmuNtDll.h
index d150ed4cc..23adb6b05 100644
--- a/src/CxbxKrnl/EmuNtDll.h
+++ b/src/CxbxKrnl/EmuNtDll.h
@@ -695,6 +695,15 @@ typedef NTSTATUS (NTAPI *FPTR_RtlAnsiStringToUnicodeString)
     IN     BOOLEAN         AllocateDestinationString
 );
 
+// ******************************************************************
+// * RtlAppendStringToString
+// ******************************************************************
+typedef NTSTATUS(NTAPI *FPTR_RtlAppendStringToString)
+(
+	IN OUT PSTRING    Destination,
+	IN     PSTRING    Source
+);
+
 // ******************************************************************
 // * RtlUnicodeStringToAnsiString
 // ******************************************************************
@@ -1137,6 +1146,7 @@ typedef PVOID (NTAPI *FPTR_RtlDestroyHeap)
 extern FPTR_RtlInitAnsiString              RtlInitAnsiString;
 extern FPTR_RtlInitUnicodeString           RtlInitUnicodeString;
 extern FPTR_RtlAnsiStringToUnicodeString   RtlAnsiStringToUnicodeString;
+extern FPTR_RtlAppendStringToString        RtlAppendStringToString;
 extern FPTR_RtlUnicodeStringToAnsiString   RtlUnicodeStringToAnsiString;
 extern FPTR_RtlFreeAnsiString              RtlFreeAnsiString;
 extern FPTR_RtlNtStatusToDosError          RtlNtStatusToDosError;
diff --git a/src/CxbxKrnl/KernelThunk.cpp b/src/CxbxKrnl/KernelThunk.cpp
index 1372cbd69..b12384b28 100644
--- a/src/CxbxKrnl/KernelThunk.cpp
+++ b/src/CxbxKrnl/KernelThunk.cpp
@@ -96,7 +96,7 @@ extern "C" CXBXKRNL_API uint32 CxbxKrnl_KernelThunkTable[379] =
 	(uint32)PANIC(0x0021),                                    // 0x0021 (33)  ExfInterlockedInsertTailList
 	(uint32)PANIC(0x0022),                                    // 0x0022 (34)  ExfInterlockedRemoveHeadList
 	(uint32)FUNC(&xboxkrnl::FscGetCacheSize),                 // 0x0023 (35)
-	(uint32)PANIC(0x0024),                                    // 0x0024 (36)  FscInvalidateIdleBlocks
+	(uint32)FUNC(&xboxkrnl::FscInvalidateIdleBlocks),         // 0x0024 (36)
 	(uint32)FUNC(&xboxkrnl::FscSetCacheSize),                 // 0x0025 (37)
 	(uint32)PANIC(0x0026),                                    // 0x0026 (38)  HalClearSoftwareInterrupt
 	(uint32)PANIC(0x0027),                                    // 0x0027 (39)  HalDisableSystemInterrupt
@@ -321,9 +321,9 @@ extern "C" CXBXKRNL_API uint32 CxbxKrnl_KernelThunkTable[379] =
 	(uint32)FUNC(&xboxkrnl::PsTerminateSystemThread),         // 0x0102 (258)
 	(uint32)PANIC(0x0103),                                    // 0x0103 (259) PsThreadObjectType
 	(uint32)FUNC(&xboxkrnl::RtlAnsiStringToUnicodeString),    // 0x0104 (260)
-	(uint32)PANIC(0x0105),                                    // 0x0105 (261) RtlAppendStringToString
-	(uint32)PANIC(0x0106),                                    // 0x0106 (262) RtlAppendUnicodeStringToString
-	(uint32)PANIC(0x0107),                                    // 0x0107 (263) RtlAppendUnicodeToString
+	(uint32)FUNC(&xboxkrnl::RtlAppendStringToString),         // 0x0105 (261)
+	(uint32)FUNC(&xboxkrnl::RtlAppendUnicodeStringToString),  // 0x0106 (262)
+	(uint32)FUNC(&xboxkrnl::RtlAppendUnicodeToString),        // 0x0107 (263)
 	(uint32)FUNC(&xboxkrnl::RtlAssert),                       // 0x0108 (264)
 	(uint32)PANIC(0x0109),                                    // 0x0109 (265) RtlCaptureContext
 	(uint32)PANIC(0x010A),                                    // 0x010A (266) RtlCaptureStackBackTrace