Now that PostgreSQL 9.3 beta1 has been released we've started to jump start our experimentation by compiling our favorite extensions. First on the list is PL/V8 js.
This was compiled against 9.3beta1 for 64-bit and 32-bit and plv8 version 1.4.0. We briefly tried with the EDB windows builds which we downloaded from: http://www.enterprisedb.com/products-services-training/pgbindownload and seems to work fine.
We hope windows users find these useful.