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Two quickies related to VirtualPC’s:

[Via ISerializable]How to use virtual PC and still save lots of room: differencing disks: Start out with a hard drive image you're comfortable with, then create "differential" images based on that image, where the only space they take is the "difference" between the two. That ends up saving a lot of room.

[Via The Soul of a Virtual MachineSysprepping a virtual machine: You can create a “base” virtual machine with the operating system and applications you want, and then copy its .vhd file to use for other virtual machines. When you do this, it’s important to run a tool called Sysprep on the base virtual machine. That way, when you start a virtual machine that uses a copy of the base virtual machine’s .vhd file, the guest operating system will be assigned a new SID, GUID, MAC address, and so forth when it starts up. This way you won’t end up with network conflicts between different virtual machines that use the same copied .vhd file.

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