Restore an Exchange registry key without backup

%3CLINGO-SUB%20id%3D%22lingo-sub-2155641%22%20slang%3D%22en-US%22%3ERestore%20an%20Exchange%20registry%20key%20without%20backup%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2155641%22%20slang%3D%22en-US%22%3E%3CP%20class%3D%22x-hidden-focus%22%3EThe%20exchange%20Frontend%20service%20stops%20running%20and%20all%20my%20effort%20to%20get%20it%20started%20proved%20abortive.%20In%20the%20process%2C%20I%20accidentally%20deleted%20the%20MSExchangeFrontend%20service%20registry%20key%20in%20the%20system%20registry.%3C%2FP%3E%3CP%3EPlease%2C%26nbsp%3B%20how%20can%20I%20get%20it%20back%3F%20I%20have%20no%20backup%20and%20no%20restore%20point.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%20class%3D%22x-hidden-focus%22%3EI%20need%20help%20urgently.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EThanks.%3C%2FP%3E%3CP%3EBoniface%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-2155641%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EExchange%20Server%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
Regular Visitor

The exchange Frontend service stops running and all my effort to get it started proved abortive. In the process, I accidentally deleted the MSExchangeFrontend service registry key in the system registry.

Please,  how can I get it back? I have no backup and no restore point.

 

I need help urgently.

 

Thanks.

Boniface

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