System Level Exception?

[JeffMotes]

I am calling a LabWindows function (DLL) from TestStand.  I have executed this code many time without a problem.  This morning the first run, I go a -17502 System Level Exception.  I started it again and it ran fine.  Any ideas what could cause a random failure like this.?

[Alex+ra]

Hi JeffMotes,

This error generally indicates memory corruption. It may not show up in a single run of the code, but if it's called many times in the TestStand sequence, it may eventually throw an error. What version of CVI was the code developed in? Do you know which function in the DLL is generating the exception?

Regards,

Alexandra