Windows Vista Enterprise Edition 30Day Virtual Image Trial Version available for download.
System Requirement :
Windows Server 2003; Windows Vista; Windows XP
In addition to the System Requirements for the virtualization product, you will need additional disk and memory resources for running the virtual machine. This VHD is pre-configured to use approximately 10GB of hard disk space and approximately 1024MB of memory
Other Tryout Virtual Images are available
http://www.microsoft.com/technet/try/vhd/default.mspx
