We have found 4 software records in our database eligible for .vmc to .vhd file format conversion.
In order to convert virtual machines from one program to another (in this case conversion from Virtual PC to Microsoft Virtual Server, i.e. vmc to vhd conversion), you will need to convert all files as a bundle and not just few files.
It is true that the wizards used for conversion usually let you pick one file with settings (like .vmc), but you will also need all of the remaining files for a successful conversion of whole virtual machine.
VMC
A vmc file extension is used for Microsoft Virtual PC settings files. The file contains complete settings for Microsoft Virtual machine such as processor settings, memory settings, graphic card settings, net connection, and USB settings. A vmc file is related to the VHD file, where virtual machine disk image is stored.
VHD
A vhd file extension is commonly used for virtual hard drives for Microsoft Virtual Server. A vhd file contains disk image used in virtual machines. Several programs can work with .vhd files including Microsoft Virtual PC, or ISOBuster.