Symbols folder fill with a lot of PDB. Visual Studio 8+10 + Windows SDK 7.1 + .NET + VB +VC. Used for debug purposes. Can be used with various debuggers and Windows Sysinternals' Process Explorer to see API calls/threads etc...
RC.EXE batch-file wrap with verbosed output and progress details, Full Unicode support and all the of the includes (80MB) of Windows-SDK 7.1 auto-loaded. Completely portable (You don't need to download Windows SDK to compile a single RC file). 100% Support for all of the old RC.EXE command-line switches. Compiles any RC to RES without errors.