I installed first WinXP in partition C:, then created partition D:. Both NTFS. Then I installed Win7 in partition D:. When I open Win7, it nevertheless starts with "C:" and accesses WinXP files under (now called) "D:"! When I open WinXP, it also starts in C:, but has no access to the Win7 partition. It should be possible to see (browse) Win7 folders and files from WinXP, too! But how? I in another computer have Win2k in C: and WinXP in D:. There WinXP starts in D: and can access Win2k in C:. The other way around, Win2k starts in C: and can access WinXP files in D:. Very useful in rare cases! Like a boot-disk on the hard-disk. As an example, I once had a nasty spyware that came back when removed by an anti-spyware. One of its files couldn't be removed and instead reinstalled it. I could, however, remove it from Win2k, and it never came back. I want it like that here, too!