I am using Office 2003 with all service packs and the Office 2007 file converter add-in. I recently moved the installation to a new Windows7-64bit machine.
Everything works fine except for one annoying problem. When I open a program, say Excel or Word, and then click on a file, the file opens instantly. It is very fast. However, if I first double-click on a file I want to open (an Excel or Word file), it will take anywhere from 45-seconds to a minute for the file to open.
Security settings and anti-virus programs don’t seem to be a factor. File size is not a factor. The slow-down occurs only if I first click on the file rather than if I first open the program and then click on the file. It only happens with Office. PDF and other file types are not affected.