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Saturday 16.8.2025 / 01:51
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afterdawn.com > forums > software, operating systems and more > windows - software discussion > cant open java program for windows
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cant open java program for windows
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dvr
Junior Member
_ 		24. September 2007 @ 13:17 _ Link to this message    Send private message to this user   
it is a .jar file and it used to open and work in xp but now in vista it says an error message

could not find main class program will exit

how do i run it? thanks
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muslim
Suspended due to non-functional email address
_ 		24. September 2007 @ 20:12 _ Link to this message    Send private message to this user   
hmm .jar (java archive) can be opened by winrar you can download it from: http://www.rarlab.com but to be honest i dont know if its vista compitabe so check it before installing :)
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:)
dvr
Junior Member
_ 		25. September 2007 @ 03:56 _ Link to this message    Send private message to this user   
i dont want to extract the files inside i want to open it as a program
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gozilla
Member
_ 		25. September 2007 @ 04:16 _ Link to this message    Send private message to this user   
do you have the latest Java VM installed (and it's libraries)?

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This message has been edited since posting. Last time this message was edited on 25. September 2007 @ 04:17
muslim
Suspended due to non-functional email address
_ 		25. September 2007 @ 18:16 _ Link to this message    Send private message to this user   
Hi, exectuting jar files using double click requires java jdk installation, it associates jar files with java so that double clicking the jar file runs it. Although, some softwares like winzip or winrar change the association. Just go to the settings of these softwares and disable the jar association and re-associate jar files to be opened by java.

To download Visit :http://java.com/en/download/index.jsp

excuse my english i got confused between open (run) and open (extract).
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dvr
Junior Member
_ 		26. September 2007 @ 03:40 _ Link to this message    Send private message to this user   
i checked the associations and everything i installed java from the main site but when i run it it says

"could not find main class program will exit"
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