Webroot’s Spy Sweeper which resides on my system popped up a warning that an IP address of is trying to access the Internet. I did not recognize it so I blocked it, and if spy sweeper thinks it is a potential, I would not let it pass. I found out that the address is actually crl.Microsoft.com. Microsoft’s CRL (Certificate Revocation List) is invoked by Internet Explorer to check if the app’s component or digital signature has been revoked or is authentic. Changing the IE settings will stop the message from keep appearing.

– select ADVANCED from the new window
– scroll down to SECURITY
– uncheck ” Check for publisher’s certificate Revocation “