This tool changes the contents of the Windows/Linux kernel while booting, everything is done virtually - without any interferences with physical system changes. So far following Windows/Linux systems were tested to work correctly with Kon-Boot (however its quite possible
other versions of listed Windows systems may be suitable as well):

Currently supported Microsoft windows systems:
+ Windows Server 2008 Standard SP2 (v.275)
+ Windows Vista Business SP0
+ Windows Vista Ultimate SP1
+ Windows Vista Ultimate SP0
+ Windows Server 2003 Enterprise
+ Windows XP
+ Windows XP SP1
+ Windows XP SP2
+ Windows XP SP3
+ Windows 7

Currently tested Linux systems:
+Gentoo 2.6.24-gentoo-r5
+Debian 2.6.18-6-6861