Microsoft Office 2003

Trouble Shooting

Installing SP3 - Fails with error 0x51F

Use regedit to modify the following key:

[HKEY_LOCAL_MACHINE] /SOFTWARE/Microsoft/Office/11.0/Delivery/{90000409-6000-11D3-8CFE-0150048383C9} /CDCACHE

and change the existing value '2' to '0'

Downloading the update exe from and manually installing works.

If you're then prompted for missing files, you have no option but to provide an install CD.

-- Frank Dean - 02 May 2009