diff -r 000000000000 -r 6474c204b198 other-licenses/7zstub/src/Windows/COM.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/other-licenses/7zstub/src/Windows/COM.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+// Windows/COM.cpp
+
+#include "StdAfx.h"
+
+#include "Windows/COM.h"
+#include "Common/StringConvert.h"
+
+namespace NWindows {
+namespace NCOM {
+
+// CoInitialize (NULL); must be called!
+
+UString GUIDToStringW(REFGUID guid)
+{
+  UString string;
+  const int kStringSize = 48;
+  StringFromGUID2(guid, string.GetBuffer(kStringSize), kStringSize);
+  string.ReleaseBuffer();
+  return string;
+}
+
+AString GUIDToStringA(REFGUID guid)
+{
+  return UnicodeStringToMultiByte(GUIDToStringW(guid));
+}
+
+HRESULT StringToGUIDW(const wchar_t *string, GUID &classID)
+{
+  return CLSIDFromString((wchar_t *)string, &classID);
+}
+
+HRESULT StringToGUIDA(const char *string, GUID &classID)
+{
+  return StringToGUIDW(MultiByteToUnicodeString(string), classID);
+}
+
+}}
\ No newline at end of file