Open Zip and Save Password Protected

Open a .zip (non-encrypted) and then save it password-protected.

Downloads for Windows/Linux and Install Instructions

require 'rubygems'
require 'chilkat'

zip = Chilkat::CkZip.new()

#  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial")
if (success != true)
    print zip.lastErrorText() + "\n"
    exit
end

success = zip.OpenZip("test.zip")
if (success != true)
    print zip.lastErrorText() + "\n"
    exit
end

#  Set a password and indicate that password protection
#  should be used when writing the .zip
zip.put_EncryptPassword("secret")
zip.put_PasswordProtect(true)

#  Write the zip (overwrites test.zip)
success = zip.WriteZipAndClose()
if (success != true)
    print zip.lastErrorText() + "\n"
    exit
end

print "Zip Re-Written with Password Protection!" + "\n"