create a folder for an external drive

• First, plug in your first USB storage device.
• Go to the Windows XP disk manager by right clicking on 'my computer,' hitting 'manage,' expanding the 'storage' category and choosing 'disk management.'
  In the lower disk management window, locate the entry for your USB storage device. It will be marked as 'removable.'
• Right click the entry and select 'change drive letters and paths
• Click the 'add' button, then highlight 'mount in the following empty NTFS folder.'
  Use the 'browse' button, then the 'new folder' button to create an empty folder in the location of your choice. This will be the new home of your USB drive.
• Choose the new folder and click 'ok' to get back to the 'add drive letter or path' window.
• Now that you have your new drive folder, you can remove the drive letter that your USB device was automatically given if you'd like.
• To do this, click 'remove' and take it out
• Click 'ok.' Your USB drive is now permanently assigned to the new folder you created. When it is plugged in, the drive is accessible like any other folder on the disk you chose.
• When the drive is unplugged, the folder will still appear as normal, but will be inaccessible.
• You can share this folder over a network just as you would with any other folder. Share permissions will be removed and restored as the drive is removed and returned.
  Repeat this procedure with your other USB storage devices, creating a new directory for each. Now each of your devices has its own particular identity on your network.