procedure ServiceUpdateDescription(const ServiceName, Description: string);
var
reg: TRegistry;
begin
reg := TRegistry.Create;
try
with reg do begin
RootKey := HKEY_LOCAL_MACHINE;
if OpenKey('SYSTEM\CurrentControlSet\Services\' + ServiceName, False) then
begin
WriteString('Description', Description);
end;
CloseKey;
end;
finally
reg.Free;
end;
end;