HowtoMatrix

Today users have many choices for combining Linux and Windows on the
same machine. You can go with a traditional dual-boot system in which
the operating systems reside on different disk partitions but share a
common partition for files, or you can use an emulator such as Wine, which lets you install Windows applications right in your Linux system. Virtualization programs, such as those from VMware,
bring you closer to the more ideal solution of using both systems at
once, but one is always the host and one is always the guest, shown
inside a window. But by combining VMware Server
with some free software, you can run Windows XP along with Linux, not
inside a console window, but completely integrated into the Linux
environment.

Read more at Linux.com