Errors in Windows Management Console Services

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Hey Y’all,

I ran across this when making changes to my PC Info program. It was throwing errors on trying to query services ( McpManagementService ; NPMSSvc_55c2f ; WaaSMedicSvc).

I went into Services and took a look and they showed errors like the one below.

So I googled a bit and found you can fix this in the registry pretty easily by going to the key: Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\
then select the desired service name to get to its values as shown below:

Once there you need to change the entries for Description and DisplayName from the
@%SystemRoot%\system32\McpManagementService.dll,-101 to a text value describing the service like MCP Management Service.

Once done the errors will disappear from Services and my program stopped generating errors.

May the Forces of good computing be with you!

RG

PowerShell & VBA Rule!
Computer Specs

1 user thanked author for this post.

TechTango

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I’ve never encountered that error on my Windows 10 22H2 and here’s the current values for those entries.

I checked the McpManagementService.dll file on my system and those are the values it contains so they’re the defaults Microsoft intends.

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n0ads,

I’m running Win 11 Pro. It shows up on both of my Desktops.
My Win 10 Pro laptop shows:

PS> get-service -name McpManagementService

Status   Name               DisplayName                           
------   ----               -----------                           
Stopped  McpManagementSe... McpManagementService                  

PS> get-service -name NPMSSvc_552cf
get-service : Cannot find any service with service name 'NPMSSvc_552cf'.
At line:1 char:1
+ get-service -name NPMSSvc_552cf
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (NPMSSvc_552cf:String) [Get-Serv 
   ice], ServiceCommandException
    + FullyQualifiedErrorId : NoServiceFoundForGivenName,Microsoft.PowerShell. 
   Commands.GetServiceCommand 

PS> get-service -name WaaSMedicSvc

Status   Name               DisplayName                           
------   ----               -----------                           
Stopped  WaaSMedicSvc       Windows Update Medic Service          

PS> get-service -name NPSMSvc*

PS>

However see below!

Strange it did not throw an error when reading this one. What’s stranger is the Missing service NPSMSvc_xxx. On my Win 11 Machine it shows up with a different number that the original post!

PS> get-service -name McpManagementService

Status   Name               DisplayName                           
------   ----               -----------                           
Stopped  McpManagementSe... Universal Print Management Service    

PS> get-service -name NPSMSvc_6556555

Status   Name               DisplayName                           
------   ----               -----------                           
Running  NPSMSvc_6556555    NPSMSvc_6556555                       

PS> get-service -name WaaSMedicSvc

Status   Name               DisplayName                           
------   ----               -----------                           
Stopped  WaaSMedicSvc       Windows as Service Medic              

PS> 

This gets stranger and stranger. Also the service WaaSMedicSvc does not show in the MCC Service screen in Win 10?

May the Forces of good computing be with you!

RG

PowerShell & VBA Rule!
Computer Specs

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Service names that have the hex values appended to them are per-user services.  Per-user services are created each time the user logs on and are deleted at logoff.  The name of an instance of a per-user service changes based on the logon session that is created.

For example, you could use the command “sc quserservice NPSMSvc” to get information for the instance created at logon.

The WaasMedicSvc service appears under the display name “Windows Update Medic Service”

1 user thanked author for this post.

RetiredGeek

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I’ve seen this error numerous times on various Win10 systems. It is caused by a missing MUI (Multilingual User Interface) dll from which strings are obtained. As this is a cosmetic issue for me I just ignore it.

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