>I developed an application that is very well debuged. 250 intensive users can cause less then one error per day.
>This i can see in my error-logtable.
>What i didn't know is that many many fatal errors occur (C0005), it must be like 30 per day. Some get them quite often, some don't get them at all.
>It looks like the ones that have the fatals have the haviest machines with the fastest processor (PIII/500) and 128 MB memory.
>Since fatals are not registered in my logfile i let users make a print-screen in Word en send it to me over e.mail.
>
>Almost al of the fatals point to a line where a DO FORM ... is executed. Not a certain DO FORM but it seems it can occur at every DO FORM.
>I know this line is pointed to when for instance an error occurs in the data-environment. This can not be the case because this application works with SQL Server databases without remote views and therefor the forms don't have a data environment.

Is it the *second* call for any given DO FORM where the errors hit? These C5 errors often are related to not cleaning up references completely after the first instance is run...

Also, there is a naming bug in vfp6 where names are not cleared from memory properly. Make sure your form scx names are not the same as any programs, functions, etc.