Why Can't I Run JAR Files with a Double-Click on Windows 7 64-bit?

Running JAR Files with a Double-Click on Windows 7 64-bit

Unable to execute JAR files on Windows 7 64-bit through double-click? This article provides a solution to troubleshoot this issue.

Previously, the user implemented the 'ftype' command to associate JAR files with Java, but it didn't resolve the problem. Upon further investigation, it was discovered that a Windows Registry key may have been modified.

Troubleshooting:

1. Navigate to the Windows Registry and remove the following key:

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.jar]

2. Open the command prompt and execute the following commands:

assoc .jar=jarfile
ftype jarfile="C:\path\to\your\javaw.exe" -jar "%1" %*

These commands will associate JAR files with Java once again, allowing you to run them by double-clicking.

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