Ecco una guida su come convertire una macchina virtuale da VmWare a Virtual PC/Virtual Server: 
Dugie has more info in his blog entry "VMware to Microsoft Virtual Machine Conversions with VMDK2VHD".  A snippet is below: 
Anyway I've run through a conversion and it worked a treat.  I used the 'Dugie-thumb-in-the-air' guide below:
    - 'Scrub' the VMware Image using the first half of that very fine guide from Chris Wolf  over at SearchServerVirtualization.com 
- Use VMDK2VHD to convert the VMDK virtual disk to to a VHD 
- Create a new VMC with roughly the same hardware (IDE drives, etc, etc) in Virtual PC 2007 
- Attach your newly created and converted VHD 
- Power up you new VMC, login and wait (a few minutes) for *all* the new hardware to be detected 
- I clicked cancel to the new hardware driver wizard 
- I also clicked no to the reboot - hey livin on the edge here 
- Install the Virtual Machine additions (v13.724) 
- Reboot 
- Let the hardware wizard run 
- Tada!
Also refer to the post "Can I import VMware Virtual Machines into Virtual PC or Virtual Server?"
Source: Can I convert a VMDK to a VHD?
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