>Hi,
>
>I got a message from a customer that the feature that always worked, now, for all users gives the error message:
>
>

>AppName has stopped working
>A problem caused the program to stop working correctly.
>Windows will close the program and notify you if the solution is available
>

>
>It appears that the message comes from Windows, not for the application. I don't get this error.
>
>Where would you suggest I ask the customer to look? He wrote, all user, this is puzzling.
>
>TIA

I got something like this when a .NET program of mine ran a long time with no user interaction.
Windows thinks it's in a loop and stops it.
I solved it by using a background helper.