Per report from Grant Shirreffs.
<?if $(var.Platform) = x64 ?>
<ODBCDriver Id="Psqlodbc_9.0_Driver_ANSI" Name="PostgreSQL ANSI($(var.Platform))" File="psqlodbc30a.dll" />
<ODBCDriver Id="Psqlodbc_9.0_Driver" Name="PostgreSQL Unicode($(var.Platform))" File="psqlodbc35w.dll" />
+ <ODBCDriver Id="Psqlodbc_11_newid_Driver_ANSI" Name="PostgreSQL ANSI" File="psqlodbc30a.dll" />
+ <ODBCDriver Id="Psqlodbc_11_newid_Driver" Name="PostgreSQL Unicode" File="psqlodbc35w.dll" />
<?else?>
<RegistryValue Id="psqlodbc30a.reg.1" Root="HKLM" Key="SOFTWARE\ODBC\ODBCINST.INI\ODBC Drivers" Name="PostgreSQL ANSI" Type="string" Value="Installed" />
<RegistryValue Id="psqlodbc30a.reg.2" Root="HKLM" Key="SOFTWARE\ODBC\ODBCINST.INI\PostgreSQL ANSI" Name="APILevel" Type="string" Value="1" />