mfc42d.dll access violation

[CRiley]

I have created a an CW NI Measurement Studio Project and copied and pasted my existing VC++ Project into it.
All is compiling and linking correctly, but during run time, the error:
MFC42D.Dll AccessViolation occurs.

Using the Debug Call Stack window, this points me to 2 lines which use
"GetDlgItem(btnInfo[i].btnId)->SetWindowText(btnInfo[i].btnText);" and
" GetDlgItem(btnInfo[i].btnId)->ShowWindow(SW_NORMAL);"

Is there any way to get around this problem?
Many thanks,
CRiley

[MagmaiKH]

Are you using multiple threads? You need to do some fiddling to update an MFC control from a different thread.

Or, did you statically link the MFC library? Measurement Studio chokes when you use the libs instead of the dlls...