<p>First launched in February and updated to version 2 in May, <a href="http://www.doubletake.com/products/vmware-infrastructure/">Double-Take for VMware Infrastructure</a> is a new entrant to the field of virtual machine (VM) replication tools designed to work specifically with VMware Virtual Infrastructure. Unlike some competitors’ claims about their own products, Double-Take says its software is designed for LAN environments and should not be used with WAN links. The minimum installation requirements are two systems running <a href="http://www.vmware.com/products/vi/esx/">VMware ESX Server 3.x</a>, plus a third server running a 32-bit version of Windows Server 2003 and the <a href="http://www.vmware.com/products/vi/vc/">VMware VirtualCenter 2.x</a> management console. </p>