So Amazon have announced a release of a new Amazon Machine Image for Microsoft Windows Server 2003 R2, 2008 and 2008 R2 which now includes a new pararitualized driver, which according to Amazon provides the following benefits: Launch any Microsoft Windows Server AMI (2003 R2 to 2012, 64 bit) on any instance type Increase your Microsoft … More New paravirtual driver for Amazon EC2 instances