Michael Dunn wrote: Jambolo wrote: BSTR( L"< ParticleSystem />" ); That is still not correct, you need to make a real BSTR or use a wrapper class like _bstr_t Well, it worked just fine, so I'm not convinced. Regardless, I am using CComBSTR for the real code, but I will keep that in mind for next time.

Both are multithreaded. However, I found that linking with the MFC DLL causes linker errors, and linking statically does not. My guess is that for some weird reason (a bug?), the MFC DLLs export some STL symbols.

I found a sample app in the MS Platform SDK called IconPro. It works perfectly and it even allows you to make 32-bit icons.