User32.dll Error on 95 Not on 98 or NT

I'm having problems with my executable on win95 machines.

IE4 is loaded on all machine and the application was built on a 98 machine.
when the application runs on a win95 machine I get the error message:

error starting the program myapp.exe is linked to user32.dll; broadcast
system message a .

I can't resolve it. Can anybody help me?

Thanks