This tip will save you having to type out the full names of directories and files when using the NT command prompt. It requires the use of regedit to edit your local registry as follows:

Navigate to HKEY_CURRENT_USER/Software/Microsoft/Command Processor. Double click on CompletionChar in the right-hand pane and set its value to 9 (this value is the ASCII value of the character you wish to use to complete the command line - 9 is the Tab character).

Close the Registry Editor, bring up a command prompt and you are ready to try this out. If you type c:\W{Tab} the command line will cycle through all the files or directories that start with "W" as you repeatedly press the Tab key. If you firstly type additional characters, the list of choices will be more closely targeted.

For example, instead of having to type "cd \program files\metron\acquire\program" I can type "cd \pr{Tab}\me{Tab}\ac{Tab}\pr{Tab}"