How to remotely find out the hardware information of a Windows machine
There are a lot of third party tools to remotely find out the hardware information of a windows machine from within windows, however there are two very useful things included within Windows to let you do this:
1. MMC, right click on the My Computer icon and choose Manage, then when connected to the MMC, right click the top level (Computer Management) and choose to connect to another computer, provide its computer number. Now you can go to device manager under system tools and find some hardware information about the remote machine.
2. System Information tool, located under Start -> All Programs -> Accessories -> System tool can provide you with some information as well. Once launched click on view -> Remote Computer and see the information.