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msvcp71.dll is missing from domain controller - is it  safe to copy & paste from another DC?

Posted on 2009-04-02
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Last Modified: 2012-05-06
Hi,
I'm trying to reinstall antivirus software on a domain controller becasue it won't update itself. When I run the installation exe, I get an error saying the application failed to start becasue msvcp71.dll is missing.   I have heard that if you reinstall this .dll. some things break, like MSN.

I have two questions:  (1) Of course MSN is not a concern on a DC but I want to make sure I don't break something else. Does anyone know if there is a risk of breaking any functions or services on the domain controller if I copy the missing msvcp71.dll file from a different DC to the one that is missing the file?

(2) Is it adequate to just copy the file to the right path or do I need to also register it with the regsrv32 command? Or is there a download available from MS that will install it and register it automatically?

Thanks


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Question by:bradber
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by:BryanMI
BryanMI earned 150 total points
ID: 24051750
You won't hurt anything by copying it over and attempting to register it with regsvr32.

If it's not registerable, you'll just get an error.  Not a huge issue.

Generally, if one file is missing, others will be as well.  I'd start by copying it over from another machine that's on the same version (edition) of Windows and make sure they're at the same service pack level.

Good luck!
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LVL 6

Accepted Solution

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Hardeep_Saluja earned 350 total points
ID: 24051897
Hi Brad,
Msvcp71.dll is a Microsoft C Runtime library and it is required to run several Microsoft as well as on non-Microsoft applications

You can safely use Regsvr32 msvcp71.dll to register the file
but it is recommended to run system file checked
from command prompt run:
sfc /scannow
This command detects and fix any problems with protected files

Hope this info helps.. :)
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Author Closing Comment

by:bradber
ID: 31565869
Thanks you Bryan and Hardeep for your prompt and very helpful answers. The sfc/scannow worked and seems to be the safest and best approach so I awarded Hardeep the most points. Many thanks to both of you for your assistance.
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