Hi, Below link has a very useful tutorial related to DLL implementation in VC++ 6. http://www.codeproject.org/dll/XDllPt1.asp Hope it will be useful to you. Best Regards, Irshad

Why not save the hwnd of the media player? This way, when u press a button in your app, u can, before sending keystrokes, make the Media player window focused by using SetFocus() Bikram Singh

Thanks for the info! I tried to use it, but it does not seem to work. Also, when i try and drag the window around, its "jumpy" - like when your CPU utilization is very high and you're trying to move a window... Any idea about how to fix this problem? Bikram Singh

It is right, WM_SETFOCUS is a message. When a window receive this message, it can reject its focus by calling SetFocus!