[There's a reason that Yoda is the unofficial mascot of SBS. Size indeed matters not.] A shrinking backup window - THE OFFICIAL BLOG OF THE SBS "DIVA"
Sun, Nov 25 2007 23:38 bradley

A shrinking backup window

Chris reminded me while we were in AU of the adjustment he made to the backup program in SBS.... 

Here’s my blog article on modifying bkprunner.exe to use /FU to restore SBS performance when backing up to file:http://chrisara.blogspot.com/2007/09/modifying-sbs-2003-sp1s-bkprunnerexe.htmlThe reason for /FU is documented here:

http://support.microsoft.com/kb/839272

Filed under:

# re: A shrinking backup window

Tuesday, November 27, 2007 2:21 PM by Dean

I would like to know where Chris found out that modifying the ntbackup exe file was the same as appending the /FU switch at the end of the command line.

# re: A shrinking backup window

Thursday, January 24, 2008 5:55 AM by Chris Knight

The SBS integration for the nice pretty reporting in Server Management as well as in the daily reports is handled by bkprunner.exe. This program is a wrapper and launches ntbackup with appropriate command lines switches for either disk or tape backup, which I

My primary diagnostic tool was FileMon and Process Explorer, where I could see what got launched when running the backup Scheduled Task. Process Explorer was then used to verify the command line arguments when I started modifying bkprunner.exe.

Remember, I'm modifying the backup wrapper program - bkprunner.exe - not ntbackup.exe.

Also, please remember that this modification breaks the digital signature verification, so the binary may be flagged as a potential trojan/virus, but I haven't encountered problems with it yet.