KVR member umd has released a beta version of jBridge, a new application for Windows designed for bridging VST plug-ins. Using inter-process communication mechanisms, it aims to make it possible to run 32-bit plug-ins in 64-bit hosts, or even bridging 32-bit plug-ins to 32-bit hosts, allowing you to overcome the memory limitations of a single 32-bit process, in this last case.
The latest beta version is v0.50.