Its a registry permission prob with XP Brian
To fix this problem, go to Start, Run... and type "REGEDT32.EXE" without the
quotes to run the Registry Editor. Navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ENUM\P CI and you will see a
number of keys of the form "VEN_xxxx", where xxxx are strings like
"1102&DEV_0004&SUBSYS_00011103&REV_04". Under each of these folders will be
another folder with a long numerical name. Open each folder and look for the
"DeviceDesc" which matches the hardware you are trying to install - in this
case "IEEE 1394 controller". HIGHLIGHT THE ENTRY "VEN_xxxx" for that device
and select 'SECURITY'-'PERMISSIONS' FROM THE WINDOW TOP MENU and then tick
"Allow" for "Full Control". Close REGEDT32, reboot, and then do a normal
install. If the install again provides an error message, recheck the
permissons in regedit again. For some reason regedit does not always save
the new permissions