 
            Nikolay Sivov (@nsivov) commented about dlls/propsys/propvar.c:
return S_OK;}
+static void PROPVAR_GUIDToWSTR(REFGUID guid, WCHAR *str) +{
- swprintf(str, GUID_STR_LEN + 1, L"{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}", guid->Data1,
guid->Data2, guid->Data3, guid->Data4[0], guid->Data4[1], guid->Data4[2],
guid->Data4[3], guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);+}
Could we use StringFromGUID2() for this?