ImDisk is a virtual disk driver that can create virtual hard disk, floppy, or CD/DVD drives using image files or system memory. ImDisk Toolkit provides a graphical user interface (GUI).

The install package installs a console-mode control program called imdisk.exe and a Control Panel applet. After completing the install, type imdisk without parameters for syntax help or double-click the icon in the Control Panel. Users of mdconfig in FreeBSD will probably be familiar with the Command Line syntax of imdisk.exe. The driver, service, and control program can be uninstalled using the Add/Remove Programs applet in the Control Panel.

The driver supports forwarding I/O requests to third-party image file format handlers or services on other computers on the network. This fact makes it possible to boot a machine with NTFS partitions with a Live-CD and use the included Devio tool to let another computer running Windows on the network mount the NTFS partition on the machine with a faulty NTFS partition. This way you can recover information and even run chkdsk on drives or PCs where Windows does not boot.