Are you looking for a program that will allow a user to edit tiff images in
Sharepoint? How about a AutoCAD dwg viewer?

Adeptol Viewer now let's view autocad files right in sharepoint without the need to purchase any additional software. You can use the Adeptol AutoCAD DWF, DWG Viewer to securely view and share 2D and 3D designs and drawings with any one and right within sharepoint. The end user does not need to install any plugin or activex and neither do you need to install any additional software like autocad, office, adobe etc on server. Built on multithreaded technology and with ability to handle loads of millions of views at same time, Adeptol Viewing technology now allows you to view more than 200 documents types. For details, go to www.autocadviewer.net