We've been installing a lot of patches here at work over the last couple of weeks and now I have two Win2k servers that won't allow me to open "Add/Remove Programs". (For sure I've installed the Microsoft Security Rollup for SP4, as well as, MS05-039 and MS05-043, probably some others that I didn't keep track of.) If I go to Control Panel and click on "Add/Remove Programs", nothing happens. No window opens up or anything. The Title Bar of the Control Panel window flashes for a second, but that's it. Any ideas what I can do to fix this? I suppose I could try to repair the installation as someone has suggested here: http://www.techspot.com/vb/topic2712.html But I don't want to have to re-install all my hotfixes and Service Packs, if I can keep from it.