What service can I restart instead of a reboot

I have a VSS issue with my Exchange 2010 servers. The fix I have found is to remove a ,bak subtree in the registry here ---> HKey_Local_Machine\Software\Microsoft\Windows NT\CurrentVersion\ProfileList. There is a .bak in there and that is the sid that the VSS 8193 event error is referencing in the details tab of the event error.

The question is, the fix is to restart the offending maching after removing the .bak. These are production Exchange servers and I would like to know if I can just restart a service instead of having to reboot the machine... These servers are members of a DAG and I would rather not have to reboot if I can simply restart a service to acknowledge the removal of this registry entry...
RobguadAsked:
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RobguadAuthor Commented:
I resolved it...

The Microsoft Exchange Replica writer was not present for whatever reason.
 
See http://technet.microsoft.com/en-us/library/dd876851.aspx 

I ran Regedit and checked for the reg key below and removed it.
 
 
HKEY_LOCAL_MACHINE\Software\Microsoft\ExchangeServer\v14\Replay\Parameters.
 
DWORD value named EnableVSSWriter, with value '0'.
 
I then restarted the Microsoft Exchange Replication service

Backups are running now.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
You can try to restart Information Store service to check if this will help ..... however some registries wont take affect until restart is done

- Rancy
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AmitIT ArchitectCommented:
What is the VSS issue, can you explain more.
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RobguadAuthor Commented:
Thanks Rancy, but this registry entry isn't connected to the Info store at all, and I don't want to disrupt users by restarting that service.
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AmitIT ArchitectCommented:
Robguad, if you can elaborate more, what is the issue and why you are doing this reg change any KB from MS, then we might be able to help you better.
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RobguadAuthor Commented:
@ amitkulshrestha

The root issue is I cannot get Backup Exec 12 to run successful backups. The error is very generic and their site isn't helping at all as far as a KB article. I am getting this error.

"Snapshot technology error (0xE0008516): Resources specified for snapshot do not have any valid data on them. Check if files were deleted or renamed"

I did find out that I didn't have a VSS system Writer, I corrected that on all three DAG members. But It still fails. and on each DAG member after the backup exec failure, I get an event error 513.

Cryptographic Services failed while processing the OnIdentity() call in the System Writer Object.

Details:
AddWin32ServiceFiles: Unable to back up image of service VMware Snapshot Provider since QueryServiceConfig API failed

System Error:
The system cannot find the file specified.
.
I also receive a 8193 error that references this .bak SID that is located in that registry locations. Which brought me here to find out how to remove the key without having to reboot...
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AmitIT ArchitectCommented:
Great
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RobguadAuthor Commented:
Found the resolution myself.
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