dfrgfat.exe je nástroj pro částečnou, nikoliv plnou defragmentaci na discích FAT32, přičemž proces defrag.exe ji pouze spouští.

http://technet2.microsoft.com/WindowsServer/en/libr ary/ed01b95b-b36c-4630-bd50-df375ae86e2a1033.mspx? m fr=true

BootOptimizeFunction
The following registry entries are located under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction.

Enable
Registry path
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\Bo otOptimizeFunction

Version
Windows Server 2003

Accepted values for this entry are Y or N. If the entry is set to Y, Windows automatically optimizes the file location for boot optimization. This optimization occurs automatically if the system is idle for 10 minutes. Boot optimization improves startup time by locating startup files in contiguous clusters on the volume, reducing the movement of the disk head when reading the volume.

PS. tuto funkci bych nezakazoval...