Hello Michael, 

If you are trying to filter out these lines when the raw logs are processed and imported into SmarterStats in the first place by using a "Log Processing Rules" this would not be possible. 

If you are trying to use "Filter Sets" to filter out these error results, I will need to do some testing, as the filter sets will work on what is in the far-left column. 

If you’d like, I can help you test this out. To get started, please create a ticket with our support team and send us about a week’s worth of logs. We can use these logs to help us narrow down the results. Just so you know, we don’t have a special filter that processes the IIS column header.

Could you tell me which page you’re trying to filter these results on? 

sc-status=500 | "500"
sc-win32-status=64 | "64"

Thank you

~Tony

Aye I am willing to do this with you.  is there another way to filter out these records that I am not doing.  I don't care how it's done as long as I can filter it out to the smarter stats client.  that way I can get a real understanding of REAL 500 errors vs client burps.  I can open a ticket.