Creating a Bootable (memtest) Flash Drive from Windows Vista

I needed to create a bootable usb flash drive from vista to run memtest on my laptop with no cdrom drive. It took quite a while to get it working so I'm posting this in the hopes that it'll save someone else some time. I'm using 32 bit vista. Here's how I got it sorta working:

• Get the hp flash drive formatting utility from http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&mode=3&taskId=135&swItem=MTX-UNITY-I23839.
• Run the file and tell it just to extract.
• Open up the new folder and run the installer in XP SP2 compatibility mode as an admin.
• Right click on cpqsetup.exe and click on properties
• Go to the compatibility tab
• Check off "Run this program in compat..." and select Windows XP (Service Pack 2)
• Check off "Run this program as an administrator"
• Click Ok
• Run (probably double click) cpqsetup.exe
• Once it's installed, run the utility in Win 98 / ME compatibility mode as an admin.
• Click start
• All programs
• HP System Tools
• Right click on "HP Drive Key...", Properties
• Same as above but for the compatibility mode select Windows 98 / Windows ME
• Click Ok
• Go back into the start menu and run the tool
• On my machine it was realllly slow. It took about 20 minutes to format a 1 GB flash drive as a hard drive (which turned out not to be what I wanted anyway). And the utility seemed to stop responding throughout. But it did eventually finish.

• Then I used virtual floppy drive
• Loaded up the virtual floppy with the windows me oem boot disk image from http://www.bootdisk.com/bootdisk.htm
  
• Formatted the flash drive as a floppy disk using the above configured utility with the virtual floppy as the source
• Copied the memtest usb key dos executable onto the flash drive
• This worked for my desktop but I haven't yet gotten the laptop to boot off the flash drive