[Jar Executable] Could not find the main class. Progam will exit.

Hello,
I am a French person. Excuse me for my English who is not perfect.
I seek to create an achievable "jar". I followed the instructions given in the url http://java.developpez.com/faq/java/?page=execution#creationJar, and on the site of Sun.
I have today only one class which I posed in a specific repertory "Class".
Appli
|__Class
|__Src
|__META-INFThe contents of my "Manifest" is stored in repertory META-INF with the name "Commission2007.MF" and its contents are as follows:
Manifest-Version: 1.0
Created-By: 1.5.0 (Sun Microsystems Inc.)
Main-Class: Commission2007
.I've left the space line at the end of the file.
Here the result of execution of my order "jar":
C:\#Java Dev\2007_Commissionnements>jar cvfm Commission2007.jar META-INF/Commission2007.MF -C Class/ .
manifest ajout�
ajout : Class/./(entr�e = 0) (sortie = 0)(0% stock�)
ajout : Class/./Commission2007.class(entr�e = 9060) (sortie = 4547)(49% compress�s)I controlled the assignment of the extension "jar" in "Working station = > Tools = > Files Option = > Files Type = > .jar Selection = > Advance =
Open = > Change = >" C:\Program Files\Java\jre1.6.0\bin\javaw.exe "- gravel bank" %1 "% *". Thus not of problem on this side there!When I double click on the file "jar" lately created, I have the error message according to: "Could not find the main class. Progam will exit. " I do not understand the reason of this error. I consulted all the subjects on the treating Net of this subject but without result. I thus call upon you.
Perhaps that the cause is in my code which however functions perfectly when I carry out it with the order: "Commission2007 java". The class "hand" is quite present to see the code below. You can find the totality of my code on the bond http://www.developpez.net/forums/showpost.php?p=1870361&postcount=74
import �
public class Commission2007 extends Frame implements ActionListener, WindowListener
     �
     // Construction de la class EdText
     // D�finition et affichage de la bo�te de dialogue
     Commission2007()
     �
     // D�finition d'une frame pour l'application et affichage de la
     // bo�te de dialogue
     public static void main(String args[])
          Commission2007 editer = new Commission2007();
          editer.show();
          editer.addWindowListener(editer);
}I thank you in advance for your assistance.
Cordially, Gilles.

Salut,
It has been my experience that it is never a good idea to name your .MF file anything else other than MANIFEST.MF.
Try naming your .MF file MANIFEST.MF and rebuild your JAR.
Bon chance.

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    //////// END comments/////////
    //I commented the following, that was the TEST sinusoidal, rotation which help me understood how to rotate wingR
    // -----------d�but de cr�ation de la rotation--------------------------------------------------
    TransformGroup objSpinxx=new TransformGroup();
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