While I’ve installed XP Service Pack 2 on one machine and had not one whit of a problem with it, I understand why corporations are wary of rolling it out at this point, instead opting for the (reasonable, logical) step of testing it in-house to integrate it properly and make sure that it doesn’t break any business-critical applications. Apparently, so does Microsoft — on Tuesday, the company released a set of policies and scripts which will block the download of the Service Pack, from both the Windows Update site and the automatic update process. Smart move, and shows a fine awareness of the reality of computing in a corporate environment.