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Windiff Helper Tool

, 30 May 2004
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A tool for effective usage of Windiff.

Sample screenshot


File comparing is one of the indispensable tasks of programming, especially if you're modifying someone's code or want to see what changes you've made between the two versions of your programs. Although being an old tool, Windiff is one of the most popular file comparing tools for Windows platform.

One major drawback of this tool is; if you have two files (or directories) to be compared that are in different locations, you either have to browse each of the items through the Windiff's Open File dialog, or copy both of them to the same directory in order to drag them into Windiff.

My solution to this problem is this tiny tool that you can drag and drop files on it and press one button to make Windiff compare them. (Provided that you inform the tool about Windiff's location before.)

Using the code

The source code is very small and self-explanatory. You just take two file names as input and launch an executable by supplying these file names as command line arguments to the program. All of the settings the tool uses is stored in the registry.

Points of Interest

You should first locate Windiff executable from "Options->Locate Windiff" menu item. You can give additional parameters to Windiff from "Options->Parameters" menu item.


  • Version 1.01 - 30/05/2004 - Buffer overflow bug fix.
  • Version 1.00 - 07/07/2003 - First release.


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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About the Author

Cagdas Calik
Software Developer METU
Turkey Turkey
No Biography provided

Comments and Discussions

GeneralThe best comparing file and folders tool (expensive...) Pinmembernahumtakum5-Jun-04 1:54 
GeneralRe: The best comparing file and folders tool (expensive...) PinmemberNekChan6-Jun-04 16:00 
GeneralRe: The best comparing file and folders tool (expensive...) Pinmembersnailflying29-Jan-07 1:11 
Generalsee also BeyondCompare PinsussrainerG3-Jun-04 15:06 
GeneralRe: see also BeyondCompare PinmemberAndromeda Shun3-Jun-04 22:45 
GeneralRe: see also BeyondCompare PinmemberrainerG8-Jun-04 14:22 
GeneralAn old favourite PinsussStephen Davies1-Jun-04 15:40 
Need optional navigation as well as Drag&Drop. Try this

Generalsee too PinmemberPierre Couderc1-Jun-04 9:08 
GeneralRe: see too Pinmembershahshirish17-Apr-09 23:07 
Generalno down Pinmemberyangzs31-May-04 14:26 
GeneralRe: no down PinmemberUltraJoe2-Jun-04 2:42 
GeneralRe: no down PinmemberCagdas Calik2-Jun-04 5:49 
GeneralRe: no down PinmemberCansian3-Jun-04 2:25 
GeneralCheck out: Pinmemberrichjcooper31-May-04 13:00 

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