Hi all, I need to install these 2 hotfix to do testing on one of my system. however when I double-click the hotfix files, it extract newdev.pdb file. From what I research, it is some kind of debugging file. How do I install the hotfix? the link are provided: http://support.microsoft.com/kb/910678 http://support.microsoft.com/kb/883667 Any help or advice is appreciated. Thank in advance.