http://blogs.msdn.com/virtual_pc_guy/archive/2007/06/07/why-are-additions-required-for-using-virtual-machines-through-remote-desktop.aspxI was recently asked why it is required to have Virtual Machine Additions installed when trying to control virtual machines by connecting to the host operating system with Remote Desktop (as discussed here ). To set the terminology correctly – we haveen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/virtual_pc_guy/archive/2007/06/07/why-are-additions-required-for-using-virtual-machines-through-remote-desktop.aspx#3137502Thu, 07 Jun 2007 13:07:30 GMT91d46819-8472-40ad-a661-2c78acb4018c:3137502Mike Dimmick<p>Why aren't you using ClipCursor to keep the mouse within the bounds of the screen and just using the actual co-ordinates of the pointer relative to the last sample position?</p> http://blogs.msdn.com/virtual_pc_guy/archive/2007/06/07/why-are-additions-required-for-using-virtual-machines-through-remote-desktop.aspx#3148272Thu, 07 Jun 2007 23:53:20 GMT91d46819-8472-40ad-a661-2c78acb4018c:3148272Wesley<p>Ben,</p> <p>What is the function of the VPC2004 DOS mouse VMADD?</p> http://blogs.msdn.com/virtual_pc_guy/archive/2007/06/07/why-are-additions-required-for-using-virtual-machines-through-remote-desktop.aspx#3167933Fri, 08 Jun 2007 22:39:48 GMT91d46819-8472-40ad-a661-2c78acb4018c:3167933Jonathan<p>...Or, you could TS directly to the guest and enjoy the pristine TS experience! This is how I usually do it. Of course, it's not usable during boot time / OS install / etc.</p> http://blogs.msdn.com/virtual_pc_guy/archive/2007/06/07/why-are-additions-required-for-using-virtual-machines-through-remote-desktop.aspx#3371046Mon, 18 Jun 2007 04:05:42 GMT91d46819-8472-40ad-a661-2c78acb4018c:3371046Virtual PC Guy<p>Mike Dimmick -</p> <p>This is not supported over TS either - and would not solve the problem.</p> <p>Wesley -</p> <p>It is just a standard DOS mouse driver.</p> <p>Cheers,</p> <p>Ben</p>