best way to clean up temp files

I have a custom Data Flow task that creates temp files to the system temp directory during processing. A lot of times, we'll use SSIS to do one data transformation, running and tweaking the package along the way... we do this in the designer ... if we notice something that's incorrect in the data view, we just hit the stop button and fix it. However, when we do this, the Cleanup() function isn't called, and my temp files are left in the temp directory, when they really ought to be disposed of.

Is there a method that gets called every time when the DtsDebugHost quits, whether it finished, didn't finish properly, or was stopped in the middle? What would be a good way (other than having some service that monitors what temp files are used by what processes) to clean up temp files after we don't need them?

~Steve

There is no way to do this in SSIS since stopping a package using the designer is just like stopping a process while using a debugger (no cleanup happens, generally speaking). However, there is a open mode called delete on close (in native code, I don't know if this maps the managed code too) and you could use that setting to have the OS perform the cleanup.

Thanks,

Matt