Question about Microsoft Windows Vista Ultimate Edition

2 Answers

Windows sidebar stopped working

Everytime I restart my pc the windows gives an error that windows sidebar has stopped working & when I try to manually start it, then it gives the same error. I am using Windows Vista Ultimate SP-1 64bit..
Kindly provide me a solution as soon as possible..
Thank you

Posted by rohitbhatia3 on

  • 5 more comments 
  • rohitbhatia3 Apr 02, 2009

    it gave an error when i typed regsvr32 atl.dll

    error number 0x8002801c

  • rohitbhatia3 Apr 02, 2009

    Again I tried after restarting,it gave the same error that atl.dll was loaded but the call to DllRegisterServer failed with error code 0x8002801c..

    Please do reply

  • rohitbhatia3 Apr 02, 2009

    now succeded in trying the above steps but still sidebar doesnt worked,same thing that when I try to start it it gives it has stopped working

  • rohitbhatia3 Apr 03, 2009

    when i opened through explorer as you said,then also the same thing happened windows sidebar had stopped working & windows starts searching for the solutions online & no solution are available

  • rohitbhatia3 Apr 03, 2009

    do i have to register to see this post

  • rohitbhatia3 Apr 03, 2009

    these are the same steps u gave before

  • rohitbhatia3 Apr 04, 2009

    well,no probs brother.. thanks for the help..



2 Answers


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Here is a solution I found when I was having problems and it worked like a gem..its a problem with two programs running a .dll file:

1. Open a command prompt by being Administrator (Right click on Command Prompt and click Run as Administrator)
2. CD to C:\Program Files\Windows Sidebar ( cd drive letter:\Program Files\Windows Sidebar )
3. Run these commands in this order:
1. regsvr32 -u sbdrop.dll
2. regsvr32 -u wlsrvc.dll
3. regsvr32 atl.dll
4. regsvr32 sbdrop.dll
5. regsvr32 wlsrvc.dll
Then start up the sidebar.
Good luck. If you have any questions let me know.

Posted on Apr 02, 2009

  • 4 more comments 
  • Anonymous Apr 02, 2009

    That's a memory basically means two programs were trying to use the same memory space. Make sure all of your programs are closed..also since it is a memory error you can reboot and try it again and maybe the memroy space it free up..good luck.

  • Anonymous Apr 02, 2009

    Ok let me do some more research, I have Vista Ultimate also, so should have something in a few..

  • Anonymous Apr 02, 2009

    Exactly what does the error say?

  • Anonymous Apr 02, 2009

    Try this. First hit ctr-alt-del and choose task manager. In task manager click on Processes. See if you have a file name sidebar.exe. If not then right click on start and then explorer. Go to c:\program files\Windows Sidebar\ in this folder you will see sidebar.exe. Click on it to see if it will start up.

  • Anonymous Apr 03, 2009

    I found this in one of the Vista forums that matches your problem. Rather techie at some points but if it works I imagine it will be worth it. You may have to use the "chat' feature in Fixya if you get stuck so I or someone can walk you thru it...keep me updated and good luck.

  • Anonymous Apr 03, 2009

    really? dang..well sorry about that. Looks like I am out of bullets. Can't find any other information, and since we ran the sidebar.exe from its native folder, it looks like the program itself is corrupted. You can repost with a chat, which will bring a lot more experts to help, not to mean any of that will work either, but there will be more eyes on it. Only other recourse is to backup your data and re-install. Another way that is a long shot is to make a disc image or clone of your operating system with software such as Acronis. This will save all of your settings, but it may also brIng the problem with it, no gurantees on that one..sorry I couldn't help more good luck.



Yateesh Varma

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Click start, type SIDEBAR. In the menu, select the one for Windows Sidebar
Properties. At the top is an option to always start that you may need to


You should have a spare copy of sidebar.exe in the Windows\winsxs folder. You'll need to search for Sidebar.exe to find it, as the folder names use GUIDs. Then copy it into Program Files\Windows Sidebar and see if that fixes things.

If nothing works please try, running System Restore to roll back to a point before the problem started. Hopefully that'll sort it out.


Posted on Jun 04, 2010


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