Helping people with computers... one answer at a time.

Marscore.dll appears in some error scenarios. Aside from running the system file checker, what to do isn't clear.

When I select "help and support" I get a warning: marscore.dll not found. What should I do?

My first approach would be to perform a system file check (See What is the system file checker and how do I run it? ). I've seen various references around about marscore.dll issues but no definitive answers. If that fixes your problem I'd love to hear about it.

Article C1957 - May 30, 2004

Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

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Recent Comments
21 Comments

you can go to this website (http://www.kellys-korner-xp.com/xp_tweaks.htm) and look under #201...this shuld do it...

Posted by: Edgar Saldana at August 1, 2006 12:21 PM

Tried all of the above but still unsolved...exact same issue...steps followed...

P.S. save yourself some command line work by going to the system32 folder and pasting a shortcut for the cmd.exe file into the task bar...tap on it to use.

1. Ran cmd and enter "net stop helpsvc"
2. Checked the following applications are not running: helpsvc.exe helphost.exe helpctr.exe
3. cd c:\windows\pchealth\helpctr\binaries
4. typed: "start /wait helpsvc /svchost netsvcs /regserver /install"
5. lots of churning and grinding sounds
6. typed in: "net start helpsvc"
7. error...net was not recognized this time
8. typed in: "start helpsvc"
9. more churning
10. same result...error message...cannot find marscore.dll
11. back to square one

Any more suggestions.

Posted by: Al at August 22, 2006 11:39 PM

I ran SFC/ scannow and it fixed the "marscore.dll" problem, and restored the Help and system restore functions. Nothing else was needed. I did not even have to use the Windows XP Install CD. Thanks for the suggestion, Leo!

Posted by: Bill Lohman at October 25, 2006 6:39 PM

I also was a victom of Dll Archive. I found this post on google but didn't realize that the page I wound up on wasn't all the comments. I was getting ready to reinstall Windows XP when I found Matthews post of 4/18/05. This did the trick, the file needed was dataspec.xml Found it in C:\Windows\ServicePackFiles\i386
Thanks David

Posted by: David at December 2, 2006 4:25 PM

Hi.
I have downloaded the marscore.dll i just dont know where to put it

Posted by: Bjarne at October 10, 2007 12:01 PM
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