LPARAM of user defined message

[shail2k4]

The fact that the value changes with every new start of the app in question looks like the LPARAM value is some kind of handle. If it is a window handle, there's a chance that you might find out to which window of the app it belongs using Spy++, and then use FindWindow() or FindWindowEx() in your app to get its current handle.

I have checked the window handles with spy++, but didnt found any window having the value equal to lparam.

Is it possible that it is pointing to some function in the dll?

Thanx