The following collection of useful Unix utilities can be obtained for free on Windows platform without requiring to install Cygwin.

  1. df - Shows the free space on disk, also it shows: cluster count, cluster size, free clusters.
  2. kill - Terminates a process using its process ID (PID). The PID can be obtained from the task manager process list or using the “ps.exe” or “psnt.exe” utilities.
  3. logoff - Terminates a Windows session and optionally reboots or power down the system.
  4. gboot32 - Gets the boot record of a floppy disk or partition and writes it on a file. Very useful to create entries at the BOOT.INI file.
  5. mkboot32 - It creates a boot record on a floppy disk or disk partition based on a boot-strap code in a file. Very useful to create MS-DOS boot disks from Windows NT. In order to do that, first get a bootable DOS disk and run “getboot.exe” to get the boot record. Then you can use “mkboot” to write that boot record in a different disk.
  6. msgbox - Displays a Windows Message Box and waits for the user to click the OK button.
  7. mt - This is a port from the Unix “mt” command. It gives you some control on a Tape device. It implements commands to rewind the tape, set the block size, forward or back a specified count of blocks, erase the tape, eject the tape, etc. It has only been tested with a DAT drive.
  8. ps & psnt - These tools are similar to the “ps” command found on every Unix system. They show a list of the running processes. ps95 runs on Windows 95, Windows 98 and Windows 2000. psnt runs only on Windows NT.
  9. rcopy - Raw copy tool. It copies raw data from/to a device, just as if it were just another file. It works with floppy disks and tape devices.
    For Unix users, it is very similar to do: dd if=/dev/rfloppy of=filename.dat
  10. tapecopy - Makes a raw copy of a tape device. It support writing/reading data from/to standard input/output like many Unix tools. It can be used with the GNU tar tools to write or read tar tapes from Unix boxes in a NT box.
  11. which - Searches an executable file in the PATH and prints its current location.
  12. wmem - Displays statics about memory usage, processor type and Windows directories location.

Read full details and manual here. You can download all of these utilities and more in a single file.