Question : Problem: Virtual PC 2007 x64 Running In Windows Server 2008 x64 w/o Hyper-V

I am currently running Virtual PC 2007 x64 with three VMs hosting WinXP Pro SP3 x86 within a dual-core PC using Windows 2008 Server x64 without Hyper-V in a SBS 2003 R2 environment.  The Win2k8 server is setup as a member server.  I have the 3 VMs setup for RDP access with separate port numbers.  I am only using one physical broadcom integrated gigabit NIC.  Will having more than one physical NIC make things run more faster and efficiently?  The machine is an HP workstation with Dual-Core P-4 3.00 GHz and 4.0 GB of DDR2/667.  The OS is Windows 2008 Server x64 Standard, and 1 SATA 80 GB HDD & 1 SATA 160 GB HDD. Please advise.  Thank you!

Answer : Problem: Virtual PC 2007 x64 Running In Windows Server 2008 x64 w/o Hyper-V

MAYBE... but probably not.

If your users are transferring files to and from the VMs or doing ill-advised things like moving a 1 GB file between two servers using the servers shares from a workstation, then yes, two NICs may improve things... but strictly speaking, RDP is a LIGHTWEIGHT protocol - using 20-50K at MOST.  That means one connection to a VM workstation is using .5% (not 5% - POINT 5%) of the total available bandwidth.  At MOST.  The three VMs are probably utilizing about 1% of the bandwidth available most of the time.

If the users are only working in Outlook and Word and Excel (for the most part), then their utilization is virtually inconsequential.