When trying to install Office XP Service Pack 1, I encounter the same error everytime. I looked at the error log and found an error 1635 generated at the time i attempted the SP1 installation. After doing some research it seem that the error occurs because of a conflict with registry entries of the Windows Installer. I currently have the Windows Installer 2.0.2600.2. The information we found is saying that because of an older version of the Windows Installer is still present in the registry it could not load the proper DLL. We did not find any help on how to solve this problem at Microsoft. What do I have to do to make this work? Uninstall the Windows Installer 2.0? Clean the registry, and if Yes how? Any help will be greatly appreciated.

Personally, I'd get rid of XP but, if you really need help, I'd try the XP forum. We "ME" people have our own problems! (Don't know whether to laugh or cry at that!)

I wouldn't touch Win XP either. I am using Win ME but I have the Office XP (Excel, Word, Publisher, Outlook). I don't know if the fact that we are using Win ME has anything to do with the problem. I will try XP, but I don't want to report a Win Me os using Office XP to the Win XP gang. I will try them anyway.