Cannot run jar file.

I try to run my jar file which generated by netbeans and I get the following error

C:\java -jar filename.jar

Exception in thread"main" java.util.zip.ZipException: The system cannot find the file specified

at java.util.zip.ZipFile.open(Native Method)

at java.util.zip.ZipFile.<init>(Unknown Source)

at java.util.jar.JarFile.<init>(Unknown Source)

at java.util.jar.JarFile.<init>(Unknown Source)

and if I try to double click the jar file, the my application didnt started..

but if i run it using netbeans, I can start my application..

what is the problem?

Somebody please help me..

Thank You.

[707 byte] By [monkeya] at [2007-11-27 0:30:42]