It seems that my Nov. 3, 2010 post on the Tableau forums is no longer part of the current displayed activity, so I've repeated it here for more lasting content.
Thought I'd share a registry hack that made my life easier after performing an install of a new Tableau release. When I have two versions on the desktop, then use Windows Explorer to view a directory, I can click on the right mouse to choose which program to open a Tableau file. Standard stuff, except when there are two or more versions of Tableau installed, since each has the same identity on the right mouse - 'Tableau'. To fix, I do a registry change. If you aren't comfortable with editing the registry, don't read any further. I won't take responsibility for messing up someone's registry.
Under HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\MUICache you will find entries for Tableau. (I search for Tableau at this point). The Name column has the path name for the program, so it includes the version number. Hit edit and change the Data element to read something like 'Tableau 6', or whatever aligns with the version. Close regedit, check out the change to your right mouse selections. Voila!
Here's the regedit item for Vista:
Hint: Control-F to bring up Find dialog box, enter Tableau, select just the Data, then press F3 to repeat until you get to your location, which may have a different hash code than mine after the HKEY_USERS. As before, look at the name column to figure out which exe is being used, then hit enter to change the Data.