Code offloading is a promising effort for embedded systems and load-balancing. Embedded systems will be able to offload computation to nearby computers and large-scale applications will be able to load-balance computation during high load. This paper presents a runtime infrastructure that transparently distributes computation between interconnected workstations. Application source code is not modified: instead, dynamic aspect weaving within an extended virtual machine allows to monitor and distribute entities dynamically. Runtime policies for distribution can be dynamically adapted depending on the environment. A first evaluation of the system shows that our technique increases the transaction rate of a Web server during high load by 73%.