preconditions for a 64Bit virtual system

I just need to install Windows 2008 64Bit开发者_如何学编程 on a virtual machine. How to??? Do I need a special type of processor? Do I need a "special" virtualization tool? Actually installation fails on startup with the message that the CPU is not able to handle a 64Bit system. host system: Windows 7 64Bit CPU: Pentium D (seems to be Smithfield 805)

You need a 64-bit capable processor. VMware / Hyper-V don't emulate CPUs, they execute on them. You don't mention what hypervisor you're using.

I tried Virtual PC 2007 and VirtualBox. Installation stopped with following information: File: \windows\system32\boot\winload.exe Status: 0xc000035a Info: Attempting to load a 64-bit application, however this CPU is not compatible with 64-bit mode.