[LinuxUsers] Windows resizing partition tool (without booting in other OS)

[Roger E. Rustad, Jr]

Does anyone have an open source tool that would let me resize a Windows 
NTFS partition *without* having to boot it to another OS (i.e. a live cd)?

(Yes, I know that I could use something like QTparted [used it many 
times], but I'm looking for an open source equivalent to something like 
Partition Magic, so I can just install the little app, resize it a just 
a little, and then do a quick reboot to minimize down time)