I've been trying to solve a problem that I've been facing for quite sometime. We have a file server at (site 1 - 3MB/3MB bandwidth) I have another remote office (site 2 - 10MB/2MB bandwidth) both located within the United States. When a user opens an Office Document (100kb-150kb) from the file server at site 1 from site 2 it takes about 16 seconds to completely open and become usable/editable. If I simply do a file copy/transfer it happens within 1 second. I'm guessing opening the document across the WAN takes longer due to the application writing a temp file to the source directory of the file. (Guessing that's why it takes so long). We have document's at site 1 that we share with site 2 so this is becoming a problem. We use DFS to share directories across the WAN, but that doesn't solve all of our problems. As we have multiple users using the same file at the same time. (We have no ability to lock the file when it use - thus causing saving over one anothers changes).
Basically are there any tips, tricks or causes for Office Documents opening incredibly slow? Any help will be greatly appreciated.