.vhd files larger than Maximum limit

Good Morning-

I've recently started backing up my .vhd Files on my Host server using Backup Exec 11d using the VSS/OFO option.  I know now that it isn't realistic to back them up this way, however, I now have a residual problem.

Some of the .vhd files have grown to over 100GB in size and they are set to be no larger than 16GB.  Microsoft Virtual Server 2005 R2 is what I am using, and when you do an "Inspect" on the drive it says:

Current Size: 100GB
Maximum Size: 16GB

Now my 1TB Drive is out of room, and I can't even try to compact these .vhd files because, lo and behold, there isn't enough disk space to complete the operation.

Has anyone ever seen this before, and if so is there a fix?  Please help.

Thank you,
iccadmin