HANK AT HAMSOFT ENGINEERING  Thanks for the nice comments. FYI: I'm working on something like you're requesting now! It's for creating document sets (I'll see if I can incorporate applications too) and will work very much like Simple WindowSets. Keep an eye out for it in about a month or so.  
(Version 3.1)

HANK AT HAMSOFT ENGINEERING  Thanks! I'm glad to hear it. As a developer your never sure no matter how much testing you do ahead of time.  
(Version 1.4)

HANK AT HAMSOFT ENGINEERING  Thanks! Once again I'm working with no problems on 10.5.6. It couldn't be any easier.  
(Version 1.53)

HANK AT HAMSOFT ENGINEERING  I'm sorry the program didn't work for you. What's Keeping Me only works when the problem is because of an open file being held by an application... which is usually the reason you can't trash a file or eject a disk. So if it didn't work then you must have had a different problem.

You can always contact me and I would help if you have a problem. You can do that from my website hamsoftengineering.com.  
(Version 1.3)