David over at Qdabra Software told us about a little trick to get Office smart tags linking back to FogBugz cases.  The script actually installs a smart tag for all 2 to 8 digit numbers.   ( If you read the Microsoft KB article, you'll see it is much harder to just grab a regular expression like Case 123 than it is to just grab 123).

His excellent instructions:

In order to install the Smart Tag, follow these steps:

1. Make sure to close all office applications
2. Download the attached FogBugz.xml and edit it to point to your FogBugz installation.
3. Copy the edited FogBugz.xml to C:\Program Files\Common Files\microsoft shared\Smart Tag\LISTS
4. Make sure the Smart Tags are enabled. When composing a message in Outlook 2007, do this:
   1. Office Menu
   2. Editor Options
   3. Proofing
   4. AutoCorrect Options
   5. Smart Tags tab
   6. Ensure "Label text with smart tags" is checked
   7. Ensure "FogBugz" is checked
5. You might need to log out and back in for changes to take effect
   

Note: instructions will vary for MS Word and Office 2003.

FogBugz.xml (1.19 kb)