msi: Dont crash on installation of services without component KeyPath

[Hans Leidekker]

On Wed, 2014-02-19 at 20:03 +0900, Aric Stewart wrote:
> I have not dug into the details, but I know it does not crash and the
> overall install does succeed. 
> 
> I can try investigating further on windows, Is there an easy way to
> determine what service this is and if it gets successfully installed on windows?

A +msi,+service trace should reveal the service name. "sc query" will list
installed services, for example.