Backslash or slash does not work using Mac OSX as host and Windows XP as Guest. The solution is make sure that in your windows XP installation, the keyboard entry is US English and not others like GB English. The backspace will work fine after reboot.
Apparently you can install windows XP on any brand of laptop or pcs using a dell XP CD. Just go thru normal installation and after installation, it will prompt you for activation. Click on activate using phone, then a button “change product key” will appear. You may use the original product key here. Then click back and activate online. Now your XP is authentic and original.

“Language is a tool, the Key is the concept.”
Impressed that microsoft provided an antivirus for public use. Worth a try. My initial loading of the software didnt bring any problems. I used it together with NOD32 without any problems.
http://www.microsoft.com/Security_Essentials/