DIGIT-ARC read-only archive · snapshot: July 23, 2026

devmgmt.msc problem

2 posts · originally from https://geek.digit.in/community/threads/devmgmt-msc-problem.157956/

G
gramesh Original post #1
Jun 2, 2012 at 7:56 PM
Hi,
on an XP pro SP2 machine the onboard and add on card serial ports are not working. We are not able to view device manager. Even the "compmgmt.msc" is not working.

We followed what is said at the link : When I tried to open Device Manager or the Computer Management window, I received an error message: "MMC cannot open the file C:\WINDOWS\system32\devmgmt.msc" : we could go upto

Regsvr32 Msxml.dll
Regsvr32 Msxml2.dll
On giving Regsvr32 Msxml3.dll it is showing error

...failed Error Performing Inpage Operation.

Please guide how to fix this.

PC details are:
Processor: VIA C3, Socket: 370CPGA, Bus Speed: 133.7 MHZ

Mother Board: CN 440-8237
SouthBridge: VIA VT8237
Chipset: VIA-CN400
BIOS: Phoenix
GPU: VIA/S3G Unichrome Pro IGP
Memory: DDR Single channel, 512MB


Thanks
dashing.sujay
Jun 2, 2012 at 11:45 PM
Run sfc /scannow, reboot, then check.