Press the button to select the path for an external program.
To edit Compact Flash images, the editing program should always be called from the Compact Flash Floppy Tool using the button.
Activating the "Expert mode" control box provides additional functions (see "Additional Functions in Expert Mode").
If the control box next to "Open Explorer after Mount Image Disk" is activated and the button is pressed, then the Explorer will automatically be opened and the virtual drive will be selected.