This is really an experimental version of 64bit psqlodbc driver.
Because I don't have such an environment, I can test it little by
myself unfortunatelty. So please use this driver at your own risk.

Also note you can't use SSL connections because no other required
64bit library (libpq, ssl libraries) is provided. 

The temporary driver name is set to "PostgreSQL AMD64W" to avoid
the conflict with win32 version. So as not to override the existent
win32 version carelessly, please follow the following instruction.
 
1. Make the folder C:\Program Files\PostgreSQL\8.1\AMD64bin.
2. Place the dll psqlodbc35w.dll in the folder.
3. Run the psqlodbcwAMD64.reg file.

Good luck.
