Luis,

There's some WinAPI stuff here in the libraries, a couple of samples on my website, at the Microsoft site http://www.microsoft.com/win32dev/. If you have the Visual Studio or MSDN it's all covered on the CD, which is the best place to get the info. There are also some good API books out there but I don't know any by title.

>Thank you, I do it and no problems at all.
>I'd like to know more about winmm.dll. Do you know where do I can get some information (books, internet site, etc...).