I just ran Norton Windoctor and it's results showed 2 missing programme files. These are, C:\WINDOWS\$NtUninstallKB898458$\ORUN32.EXE learn32.dll. and pctree32.dll.. The dialogue box said that I could have problems running some programmes if I don't have these files in situ but the Windoctor was unable to repair the problem. Please could someone who knows what they are talking about let me know whether or not I do really need these files and if so how do I go about repairing the problem. I would really appreciate some help!