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

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Summary: 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 215 | Posted May 30, 2004

Recent Comments
0 Comments

This has been of great help, I finally got my Windows functions restored... Yes, I also ran DLL Archive, evidently...

I followed instructions, it is a matter of which file is where, one is in C:\windows\servicepackfiles\i386 the other is on the windows CD in \i386 and I think there may be one more, here is how to find:
Go to Start > Run
Type: cmd.exe
From the commandline, type:
cd\
dir filename.ext /s

It takes some time but my Windows Filesearch is currently broken as well, and this is the commandline function for locating a file.
Other notes:
Please note Cd-stored files are named file.dl_ and not file.dll

You can also search the Cd-rom by:
changing from C: to your CD-rom drive letter (assume F)
From the commandline:
F:
Then:
dir filename.ext /s

Yes this has helped greatly!

Posted by: Pascal at December 17, 2005 12:11 PM

This really helps me a lot!! Thanks for Mattew's detailed step.

After I finished all steps above, the "system restore" function comes back, but the "help and support" still not be able to start up. So I did following steps which I learned from another website, then it works now.

1. Run cmd and enter "net stop helpsvc"
2. Check the following applications are not running: helpsvc.exe helphost.exe helpctr.exe
3. cd /d %windird%/pchealth\helpctr
4. rd PackageStore /q /s (if there is no such file, just ignore it and continue)
5. cd binaries
6. start /wait helpsvc /svchost netsvcs /regserver /install
7. net start helpsvc

Posted by: zerofree at December 27, 2005 8:02 PM

TY for all your help. All the tips here really helped

Posted by: jorge at January 20, 2006 8:15 AM

problem: marscore.dll by "help and support" on XP. Follow the procedure: Posted by: fauspasss at October 23, 2004 03:20 PM... and all is OK NOW !!
thank's

Posted by: gvaneynde at February 26, 2006 1:43 AM

Thanks!!!
I took a look in your instructions and the problem solved!
Keep up the good work!
Greetings from Hellas!

Posted by: Kamarinas Ioannis at May 2, 2006 5:19 AM

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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