[syslog-ng]Problem with Match()

When attempting to use the match(".asx") in my filter it is returning anything with "asx". I only need to return those lines with the period before the asx, hence a file extension. For some reason syslog-ng seems to ignore my specification of the . before the asx. I have tried searching with ..asx and \.asx and /.asx but doesn't seem to work no matter what I do. Any suggestions? Dan Edwards Network Specialist A. Duda & Sons, Inc.