woked for my issue - "service installation section invalid"
Worked for me.
I'm using a "stripped to the bone" version of XP Pro, and it's been happening on my camera driver. (Kodak C633 Easyshare)
It was looking for usbscan.sys.
I had copied it to the /system32/ folder, but the %12% stands for /system32/drivers
worked like a charm. (for my problem. Thanks!)