Command Prompt for Windows




EXTENSION Examples

Example 1:

To associate all file names with an extension of TXT to the program NOTEPAD.EXE, enter at the WinOne® Command Prompt :-

EXT TXT=NOTEPAD.EXE  "%1"

To execute the program NOTEPAD and pass the file REPORT.TXT to the program, enter at the command prompt :-

REPORT.TXT

Example 2:

Assume that the drive and directory for the program WINGIF.EXE is located in D:\PICS. Then to create an association to view GIF files, enter at the command prompt :-

EXT GIF=D:\PICS\WINGIF.EXE  "%1"

To view GIF files, located in D:\CARS, enter at the command prompt :-

D:\CARS\*.GIF

Example 3:

To delete the file extension association for .TXT files, enter at the command prompt :-

EXT /D TXT

Special notes on associations:

Wildcards can be entered at the command prompt, such as in Example 2 above, but the filename extension must not contain Wildcards, since the filename extension is used to determine which association is to be used.

When an association is determined, then the WinOne® Command Prompt will try to locate the program. The WinOne® Command Prompt will search the current directory first, and if it is not found in the current directory then the PATH environment variable is searched.