New to Java

I have one jar file of java classfiles created in eclipse. Its working fine with eclipse after giving Run Configuration (main class).

But when I try to run jar file from command prompt its giving me error - ' Invalid or corrupt jar file'

I have edited Manifest.mf for adding Main-Class also.

I have also checked in Tools-->folder option-->File Types-->Selecting Jar-->Advanced-->Edit and given the correct path of javaw.exe like - "D:\SDP75\jdk\bin\javaw.exe" -jar "%1" %*. The same jdk used for compling the classes.

Please help me. I have done volumes of googling for this. This is very crtytical to me.

Thanks