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File Extension JAR
Name: JAR or .jar
Description: Java
Archive File – A file extension JAR file is an archive
containing multiple Java files that has been compressed
using .ZIP compression. It stores Java classes and metadata
and is often digitally signed. In addition, a JAR file runs
as a program when the computer has the Java Runtime
Environment installed.
A second type of JAR
file extension is unrelated to the Sun JAR file extension.
The JAR archive from ARJ Software is a compression utility
similar to the PC archiver ARJ.
Author: Sun
Microsystems and ARJ Software
Category: Archive
File Type: Compressed
Problems: Are you
having a difficult time opening JAR files? It’s possible
that you don’t have the appropriate program for opening JAR
files installed on your PC or that you have a
registry-related error. Sun Microsystems’ JAR files require
a web browser with Java support or the Java Runtime
Environment 1.1 or above in order to open properly. ARJ’s
JAR files require their JAR utility in order to open. To
rule out a registry error, run our free registry scan.
Manual Removal
Instructions: To manually remove a JAR file, right-click the
Start button and click on Explore to open up Windows
Explorer. On the left, double-click the drive you’d like to
search for JAR file extensions. Next, go up to the Search
bar and type in: *.JAR
Windows will now
search the selected drive for any file ending with the file
extension of .JAR. Windows will display a list of all JAR
files found. Navigate to the specific JAR file you’d like to
delete. Right-click on the JAR file and click on Delete.
When asked if you are sure you want to send the JAR file to
the Recycle Bin, click on Yes.
Solution/Recommendations: If you are having trouble with the
file extension JAR files or related applications, make sure
you are running the latest version of the software. In
addition, make sure your web browser supports Java if you
are having trouble with Java JAR files. You’ll find that
updates and patches are often released to address known
issues with applications, utilities, and web browsers. In
addition, JAR file corruption and missing JAR file
associations can often be linked to registry-related errors.
Because of this, we highly recommend a registry scan to rule
out potential JAR file extension problems with the registry
itself.
If you have the
appropriate software for opening JAR files installed on your
PC but are still having trouble opening them, it’s possible
the file association is wrong. Go back into Windows Explorer
and right-click on the JAR file you’d like to open. Click on
Open With and then select Choose Default Program. Windows
will list recommended programs. If the compatible program is
listed, click on the related icon. To always open JAR files
using this program, be sure to mark the box that says,
“Always use the selected program to open this kind of file.”
Resources:
http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html
http://www.arjsoftware.com/
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