This week, we're happy to provide the Hyper-V Manager MMC (RC release as well) for Vista SP1 (x86 & x64). What this allows you to do is install the Hyper-V Manager MMC on Vista SP1 (yes, it requires SP1) which appears here in the Administrative Tools like this:
From here, you can launch the Hyper-V Manager, click on Connect to Server, type in the name of the server running Hyper-V and you're set!
You can find the Hyper-V Manager MMC here, there's versions for both x64 and x86.
Hyper-V, MMC, Hypervisior, Windows Server 2008, Windows Vista, Download