Microsoft Virtual Server is a software developed and distributed by Microsoft to provide virtualized servers over physical server.
Microsoft Virtual Server is basically a virtualization software or program used to virtualize multiple servers over single physical server. Microsoft Virtual Server distributes the physical server into equal partitions according to the number of virtual servers running on it. Different Operating system can be installed on all virtual servers. Every single virtual server residing on the physical server is unaware of other virtual server’s presence on the same physical server. No special device drivers are required to install and operate the Microsoft Virtual Server on physical host. The main purpose of Microsoft Virtual Server’s usage is to consolidate physical servers and their capacities efficiently.