I've gotten inconsistent C5 errors in the past on DBI controls but only when I wasn't properly releasing an object. i.e., I had a coding mistake that needed fixing.

Make sure you're not leaving any dangling objects around.

Guy


>This is an old issue that I (we) still haven't resolved.
>
>A few of my 700 installations get C5 fatal exception errors almost continuously. Done a huge amount of debugging and have isolated the problem to two forms contained in page frames that use DBI ctTree control.
>
>If my clients don't activate these forms - No problems. Once they do, when they Close the form (the one that includes pageframe/ctTree controls), activate another form, and then try and reactivate the first form ... Crash !!! Fatal exception c5.
>
>I've talked to DBI and they suggested reinstalling the MFC dll's (msvcrt.dll, mfc42.dll) which we did. This did not help.
>
>Oh - also, If we remove the ctTree controls, everything works fine.
>
>I'd like to avoid rewriting this code ( using MS treeview) if possible... Anyone ever seen anything like this ?
>
>Any ideas GREATLY appreciated.
>
>TIA