Are you using Virtual PC with it's associated service pack 2? Originally
there was a problem with VPC but it had more to do with disk space than RAM.
I haven't personally used VPC for Vista (i tried once but got a disk space
error) but i believe SP2 rectified that. I 'did' however get Vista working
without any problem on VMware Server (which is a free download from VMware -
you need to register, but that's no inconvenience), so it may be worth
trying VMware server instead (just google from VMware server). Against
recommendations i actually got it working on my machine that, at the time,
had 512MB RAM using 256MB for Vista and 256MB for XP. To my surprise (this
is a few builds ago) Vista worked faster with the 215MB allocated via VMware
Server than it did on a seperate partition (dual boot).
John Barnett MVP
Associate Expert http://xphelpandsupport.mvps.org
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"Mircea Neagoe" <MirceaNeagoe@discussions.microsoft.com> wrote in message
>I wanted to install Vista RC1 on a virtual machine using Virtual PC 2004.
> I receive an error - the installation cannot continue because I don't have
> at least 512MB - in the virtual machine.
> The maximum amount of memory I can assign to the virtual machine is 400MB,
> while the host's computer phyiscal memory is limited to 512MB.
> Is there any workaround for this situation - to trick the installer?
> I can't install more physical memory on the workstation, even the prices
> very low.