>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.

Is this a literal copy-paste or was there something else instead of AppName, like the real name of your app?

If it's really saying AppName, than the name of your app is broken. If M$ says so.