That's because the registry doesn't control this sort of thing. The registry isn't even loaded until well AFTER such a menu would be displayed.
Since you have Knoppix installed, I suggest you look for some sort of Grub configuration program. Grub is a Linux bootloader, which can also boot Windows. Windows has its own bootloader, but getting it to boot Linux is far more difficult than getting Grub to boot Windows.
Microsoft Windows XP Pro; 5.1.2600 service pack 2 build 2600, Bios Ver,Date: Phoenix Technologies. LTD 3.02 05/26/2006 I have partitioned and formatted my hard drive and in the new partition installed Linux from the Knoppix 5.1.0 bootable CD. I have adjusted my bios to boot from cd rom before the hard drive so I use Linux all the time and I enjoy the versatility of having two operating systems. My question is how do I set my system up to give me the choice at boot which OS I wish to run without having to boot from disc. How can I get the option to run either C:drive or D:drive. I am accomplished in the registry I have changed and tweaked my system to run like a impala, I just cannot find the area in the registry to add a string to accomplish what I wish, if there is one. All suggestions will be well received. Thank You for your help....sfa