[UMPNPMGR]

[UMPNPMGR]
- Turn the user-mode PnP Manager into a dll, as it is in Windows. However, on Windows 2k/XP/2k3, the dll is managed by services.exe (the SC Manager) (and its entry point name hardcoded in it), whereas on Vista/7+ it is managed by svchost.exe . Since we do not support external dll hardcoded services management in services.exe, make it svchost-compatible instead.
- In the .spec file, we mention that a few API set is exported (in stdcall), but we use it also for RPC, and therefore one has to fix somewhere the calling conventions.
- Add/modify the registry entries accordingly.

svn path=/trunk/; revision=64292