How to Edit a Jar File (Java Archive)

As an example, I'm using the comm.jar file located here:
C:\Program Files\\Mozilla\chrome
C:\Program Files\Netscape\Netscape\chrome

First and most importantly, always back up the file you intend to edit before making any changes to the file.

Copy the comm.jar file to a temporary folder for editing
I have an "Edit" folder which I created for this purpose

Change the name of comm.jar to
Open the file with your unzip program.
For the sake of example I will use WinZip

Right click the renamed file, and select: "Extract
Select: "C:\Edit"
(or whatever you named your file for this edit)

In the C:\Edit folder you will see a "content" folder which contains one or more subfolders.
The subfolder(s) contain the file which you will edit.
Open the file in WordPad, and make the edit.
Once you have made the edit, save the edited file.

Highlight the "content" folder
Right click, and select: Add to zip
in the "Add to archive:" field
Select: "C:\Edit\"
Click on the Add tab
The edited file has now been repacked, and you are ready to replace the existing comm.jar file with the

Open the C:\Program Files\Netscape\Netscape\chrome folder
Or the C:\Program Files\\Mozilla\chrome folder

Rename the existing comm.jar file to oldcomm.jar
Now copy the file to the chrome folder
Rename to: comm.jar


If you have problems, then post your questions on the:

WindowsBBS Netscape and Mozilla Forum.
SillyDog701 Netscape and Mozilla Forum

I'm a Moderator on the Forums, and along with the other informed Netscape and Mozilla users and members,
will be happy to provide you with any further assistance you might require.


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