I'm trying to run PTW and I receive the following error code. My software protection is the USB key.

Category: Hardware Locks-USB keys-Error Codes

Answer: See the following error codes.

• -1: Time-out
• -2: Invalid address
• -3: Key not attached to parallel or USB port
• -4: Not a SKM hardware key
• -5: Write verification
• -999: Invalid service

• 15: Network hardware key server not running
• 133: No more stations can log in for this program
• 134: No more activations left
• 155: This version of PTW requires a newer version of the Aladdin License Manager to be installed on the server