Maybe you could help us by being very specific with what worked and what 
went wrong?  The only thing I could gather from your message was that it 
was difficult to do, and it was slow.

One thing that is essential for good performance is to ensure that your 
host machine is new enough to support the virtual processor extensions 
in the CPU.  If it does not, then the virtual machine gets emulated one 
instruction at a time.  This is orders of magnitude slower than if you 
can use the virtual processor extensions.  My 3 year old Intel i5 Quad 
Core chip is fine, but modern Atom processors do not have the 
extensions.  Any virtual machine (FreeDOS or otherwise) will be painful 
without them.  It sounds like your machine has the processor extensions, 
but you need to ensure they are enabled in the BIOS.

Even if you do not use the power saving TSRs or programs that are power 
aware, the worst that will happen is that the virtual machine running 
FreeDOS will use one of the host CPU cores.  For a desktop system this 
is not a major problem.  On a laptop it will shorten battery life.  You 
have a wide variety of TSRs to choose from - FDAPM and DOSIDLE are my 
favorites so far.


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