I'm using the security software NOD 32 (v4) by ESET Security. I've used it for years (since earlier versions), and have never had too much of an issue, until this morning. I get the error "Analysis of application protocols will not function. An error occurred while starting services. Analysis of application protocols (POP3, HTTP) will not function."
I had recently installed Windows 7 (64-bit) SP1, along with a string of critical updates, then did system restore to an earlier date (because I incorrectly thought the update had messed up my monitor settings), and finally proceeded to undo the system restore. I had to hit update one more time and then everything appeared to return to normal, but maybe this screwed up NOD 32?