|Not found procedure entry point errors always mean that you have a file that is not meant for your machine trying to run. As it does so, it's looking for this entry point in the files you do have, but it's not there because it's the wrong version of OS most likely or you've installed a package that that did not update the file system properly to include the file with the missing procedure.|
So what did you do to cause this? Still running SP2 for XP is among the many things that can cause this. Recently installed software that did not do an adequate job of OS level detection will also cause this.