I was just browsing the custom log files for one of our most important sites and came accross the following page been requested:
/MSOffice/cltreq.asp?UL=… etc
and assumed that some little shit was trying to hack my server. Not very well considering that it definately looked like an attack against IIS and I´m running on Apache. I decided to have a look around and got this off Google
These requests are generated by someone using IE with Microsoft Office installed. IE will query the server to see if it supports web discussions. This query will only happen if the user has the discussion bar turned on. The discussion bar appears by clicking the "Discuss" icon or View-> Explorer Bar-> Discuss. The bar is off by default.
Hmmm… Typical way of doing things over in Redmond.