Added RtlNtStatusToDosErrorNoTeb, RtlGet/Set/RestoreLastWin32Error,
RtlGUIDFromString, RtlStringFromGUID.

diff --git a/include/winternl.h b/include/winternl.h
index 6456027..adaa823 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -1239,7 +1239,7 @@
 void      WINAPI RtlReleasePebLock(void);
 void      WINAPI RtlReleaseResource(LPRTL_RWLOCK);
 ULONG     WINAPI RtlRemoveVectoredExceptionHandler(PVOID);
-DWORD     WINAPI RtlRestoreLastWin32Error(DWORD);
+void      WINAPI RtlRestoreLastWin32Error(DWORD);
 
 void      WINAPI RtlSecondsSince1970ToTime(DWORD,LARGE_INTEGER *);
 void      WINAPI RtlSecondsSince1980ToTime(DWORD,LARGE_INTEGER *);
@@ -1253,7 +1253,7 @@
 NTSTATUS  WINAPI RtlSetEnvironmentVariable(PWSTR*,PUNICODE_STRING,PUNICODE_STRING);
 NTSTATUS  WINAPI RtlSetOwnerSecurityDescriptor(PSECURITY_DESCRIPTOR,PSID,BOOLEAN);
 NTSTATUS  WINAPI RtlSetGroupSecurityDescriptor(PSECURITY_DESCRIPTOR,PSID,BOOLEAN);
-DWORD     WINAPI RtlSetLastWin32Error(DWORD);
+void      WINAPI RtlSetLastWin32Error(DWORD);
 NTSTATUS  WINAPI RtlSetSaclSecurityDescriptor(PSECURITY_DESCRIPTOR,BOOLEAN,PACL,BOOLEAN);
 NTSTATUS  WINAPI RtlSetTimeZoneInformation(const TIME_ZONE_INFORMATION*);
 ULONG     WINAPI RtlSizeHeap(HANDLE,ULONG,PVOID);