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[Originally posted by ddesmond]

I am on a team developing a PB 6.5/PFC-based application and need your
In our app, we have a number of windows that crash the app when the user
clicks the 'X' to close the window. This does not occur in all the windows,
just a few. And of these that do crash, if the user clicks a 'Close' button we
have created, the window does not crash the app. The 'illegal operation error'
we get points to the detail message of :'PB60 caused an invalid page fault in
module PBDWE60.DLL @ 0157:115c327b'. Any idea why this happens?