Question : SQL Server 2005 ShrinkFile never finishes

I am having a problem shrinking files on a database.  My db has 4 data files and is a moderatly active system.  I cannot take it down for any period of time.  

The 4 data files have grown to about 58-60 GBs.  We did maintenance and archiving and I need to shrink them back to around 40 GBs.  When I run shrinkfile it gets about 50% complete then hangs, I am checking it in sys.dm_exec_requests and I can see it flounder on wait_resources endlessly.  

I just assumed i was trying to go from a too large amount.  I have tried ever decreasing sizes, and now I am at 5 MBs and it will not complete (I haven't gotten a single file to shrink by even 1 MB).  Trying to shrink by 5mb, it hangs at 99.998% complete for hours.  I have tried issuing checkpoints before and after and even durning.  

Here is one example.
File size is 58507 and the file is 50% full
I am running DBCC SHRINKFILE (Filename,58505);

This command has been running while I type this for over an hour.

What am I doing wrong?  Any advice would be greatly appreciated.

Answer : SQL Server 2005 ShrinkFile never finishes

Ah, you've split it.  OK, then this is going to take a LONG time.  As I said, I have a 100GB database on a very powerful server (look at the specs for a Dell 6950) and it takes hours to shrink a 100GB database.