I notice the last few days both of my computers were hanging up at times. One quick check I notice was that I could go anywhere on the disktop and right click and about every four or five times doing this xp would hang up. I also did a ctlaltdel and started the task manager and found that the verclsid.exe program was starting when the computer would hang up. Doing some checking on line I would that kb908531 patch from micorsoft was causing the problem The following site had a text file kb908531_allfix-xp.txt
that will fix the problem. I downloaded the file to my disktop then changed it to Kb908531_allfix-xp.reg then ran it and it added the lines need to fix the problem.
This problem was driving me crazy until I found this fix. Hope this helps anyone else that is having this problem.