1. A system for programming a network device with user-defined instruction scripts, the system comprising: a servicing node, comprising: at least one user defined object; and an object virtual machine that executes instructions enabled by the at least one user defined object while the servicing node processes a network session between a client device and a server; and at least one node controller that sends a user defined class and a user defined object configuration to the servicing node, the user defined class and user defined object configuration used by the servicing node to instruct an object virtual machine to generate the at least one user defined object.