Does this worm have anything to do with the fact that my external users cant connect to our exchange server that is RPC published? I know it has to do with RPC and port 135, which is where the publishing goes on. I called earthlink thinking they may have blocked the protocol or ports, but they say they haven't, yet we cant connect no matter how many retries. Just started happening the last few days. Thanks Jeff Sloan Network Administrator Cross Oil Refining & Marketing, Inc. 484 E. 6th St. Smackover, AR 71762 Phone 870-864-8688 Fax 870-864-8689 Cell 870-866-9941