Client doesn't work
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Henrz
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I got all of the stuff in the Lib folder, but it still comes up with the Warning: lib/minecraft.jar not found, help?

InvisiblePerson
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Did you

Did you extract minecraft.jar?

Henrz
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There's nothing to Extract

It's not in a ZIP file in the first place, so I can't and haven't.

Jon
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This exact same thing is

This exact same thing is happening on my other computer... I have no clue as to what it may be. I re-downloaded everything, updated Java, etc, and it  still is the same. I tried toning down the memory, and its still not working. I have the exact same setup on my other computer that works. Enough RAM, XP, Latest Java, etc. Nothing at all is different, well something has to be, but I don't know what. Here is the error: (It seems to be reading the older version of Java)

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Checking C:\Program Files\Java\jre1.6.0_01 folder
Found java in C:\Program Files\Java\jre1.6.0_01 folder
Checking C:\Program Files\Java\jre1.6.0_02 folder
Found java in C:\Program Files\Java\jre1.6.0_02 folder
Checking C:\Program Files\Java\jre1.6.0_03 folder
Found java in C:\Program Files\Java\jre1.6.0_03 folder
Checking C:\Program Files\Java\jre1.6.0_05 folder
Found java in C:\Program Files\Java\jre1.6.0_05 folder
Checking C:\Program Files\Java\jre1.6.0_06 folder
Found java in C:\Program Files\Java\jre1.6.0_06 folder
Starting java from "C:\Program Files\Java\jre1.6.0_06\bin\java.exe"
Exception in thread "main" java.lang.NoClassDefFoundError: Main
Caused by: java.lang.ClassNotFoundException: Main
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
========================================
Warning: lib\minecraft.jar not found.
Did you read instructions / download it?
========================================
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre1.6.0_06\bin\java.exe"
Press any key to continue . . .

InvisiblePerson
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Just wondering

Just wondering because some people extract it, even after being told not to. Did you try changing your "Program Access and Defaults"?
Also, it is detecting Java 6u06, not 6u17 which is the newest one, so that might be a problem, as brower-side Minecraft.net recommends 6u14 at least. Try changing from autodetect to the newest java you have. In the run.bat, change JAVA6="auto" to the path your newest java is in. Usually, the newest java gets stored in C:\Program Files\Java\jre6\bin\java.exe because it gets overwritten.

Jon
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I just tried that and it

I just tried that and it still wont work...

Starting java from "C:\Program Files\Java\jre6\bin\java.exe"
Exception in thread "main" java.lang.NoClassDefFoundError: Main
Caused by: java.lang.ClassNotFoundException: Main
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: Main.  Program will exit.
========================================
Warning: lib\minecraft.jar not found.
Did you read instructions / download it?
========================================
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre6\bin\java.exe"
Press any key to continue . . .