This isn't an issue with the ISNULL funtion, it is just how the integer zero is treated.

I have a posting that addresses my frustration of this.

I believe that an integer...

Correction: it is not the FTP task control that I'm using, it is the File System Task control.

I would say that someone named the task wrong then.

It isn't really a File Watcher, its a file checker.

If it doesn't listen on it own, then it really doesn't keep...