after I have edited the file to contain the items i also want to have dynamic lights my game just crashes without report and if i dubble click on the .jar file it says "Error: Invalid or corrupted jar file"
Is there any way i can fix it because i really need a dynamic lights mod.

ps. could it be because i want to add dynamic light to an item from another mod?

That's a first, adding additional items should not corrupt the jar file. What tool did you use to archive the files after editing?

Edit: Double-clicking the jar file will always result in an error, since it's not configured to do anything on its own. Minecraft is still able to read it though

I just used the Microsoft zip program.
Should I have used 7zip?

That should be fine. You normally don't need 7zip. If it doesn't work in game, please attach your most recent minecraft log for me to investigate further (e.g. using mclo.gs)

Any updates on this @TheRune12?