I had an interesting problem today regarding a Canon EOS camera and Windows 7 Ultimate x64.
The problem was that the Canon EOS application would not download images from the camera
to a redirected My Documents folder.
To fix this particular issue I mapped a drive to \\servername\sharename. I then set the Canon EOS
application to Run As Administrator. This was accomplished by right clicking the shortcut on the
desktop and then from the dropdown menu selecting Properties. You then click the
Compatibility tab and under Privilege Level check the check to enable Run As Administrator.
I then opened the Canon EOS Application and changed the settings to point to the new
mapped drive. After that was done I clicked on Import Images and it now imported all the
images from the camera to the destination without any errors.