C for embedded, several compilers. C++, windows, along with Visual Studio 6. Some assembly, infrequent incursions into other languages, I use CMAC too.
Our group uses CodeWrong, but I bought my personal copy of MEW (i’ve been using since version 7 DOS), I couldn’t stand the differences. I use BSC utility extensively, re-compiling C/c++ source for GNU with the microsoft tools, just so I can have this functionality.