Share problems

[BrianT]

I just installed a new hard drive, formatted the drive with NTFS, WinXP
home.
I can share the c drive and all folders EXCEPT the program files folder.
The program files folder sharing tab says "all the options on this tab are
disabled because this folder is used by the operating system"
I need to share my QuickBooks (and other) info with another machine in my
office.

I have a laptop setup the same way and I can share the entire drive on it.

any ideas on what I can do to share that folder?

TIA
Brian