Urgent: VSS stuck

Posted on 2013-09-06
Medium Priority
Last Modified: 2013-11-05
We are trying to backup remotely a server through Idera´s software CDP.

 The problem is that the VSS service on Windows Server although stopped and rebooted (O.S. and service) cannot list the writers and gives the impression to the software that already is executing a shadow copy.


We execute [net stop vss] successfully and [net start vss] as well (manually).

When we execute vssadmin list writers it shows “Waiting for responses. These may be delayed if a shadow copy is being prepared.”

There we can wait forever.


The solutions given by Idera is either  re register the Windows service so it starts on a fresh start or reinstall if the O.S. gives that option.


Question by:thintech
  • 2

Author Comment

ID: 39471821
OS: Microsoft Windows Server 2003 R2, Standard Edition Service Pack 2

VSS: 1.1 según writer.


Los drivers de R1: R1 Filter; R1 VSS Filter
LVL 30

Accepted Solution

ded9 earned 2000 total points
ID: 39472812
Automated....Run the fixit from this kb


Manual :- To resolve this problem, follow these steps:

    Click Start, click Run, type Regedit, and then click OK.
    Locate and then click the following registry subkey:
    On the Edit menu, click Delete, and then click Yes to confirm that you want to delete the subkey.
    Exit Registry Editor.
    Click Start, click Run, type services.msc, and then click OK.
    Right-click the following services one at a time. For each service, click Restart:
        COM+ Event System
        COM+ System Application
        Microsoft Software Shadow Copy Provider
        Volume Shadow Copy
    Click Start, click Run, type cmd, and then click OK.
    At the command prompt, type vssadmin list writers, and then press ENTER.
    If the VSS writers are now listed, close the Command Prompt window. You do not have to complete the remaining steps.

    If the VSS writers are not listed, type the following commands at the command prompt. Press ENTER after each command.
        cd /d %windir%\system32
        net stop vss
        net stop swprv
        regsvr32 ole32.dll
        regsvr32 oleaut32.dll
        regsvr32 /i eventcls.dll
        regsvr32 vss_ps.dll
        vssvc /register
        regsvr32 /i swprv.dll
        regsvr32 es.dll
        regsvr32 stdprov.dll
        regsvr32 vssui.dll
        regsvr32 msxml.dll
        regsvr32 msxml3.dll
        regsvr32 msxml4.dll
    Note The last command may not run successfully.
    At the command prompt, type vssadmin list writers, and then press ENTER.
    Confirm that the VSS writers are now listed.

Reboot and check.


Author Closing Comment

ID: 39625440
thank you!

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