Invalid or corrupt jarfile TekkitLite.jar

[Steve887]

Title: Invalid or corrupt jarfile TekkitLite.jar

Version: 0.5.1

OS: Windows 7 64 bit

Java Version: 1.7.0_15

Description of Problem:

I downloaded the latest recommended Tekkit Lite server (0.5.7) and when I run it using the bat file, I get the error "Invalid or corrupt jarfile TekkitLite.jar" after which the batch file exits.

I tried downloading version 0.5.6 and 0.5.8 with the same result. Has anyone run into this problem and know a solution?

Error Messages:

Invalid or corrupt jarfile TekkitLite.jar

Error Log:

C:\>java -Xmx3G -Xms2G -jar TekkitLite.jar nogui

Invalid or corrupt jarfile Tekkit Lite.jar

C:\>pause

Press any key to continue . . .