Rename php_freetds.dll to php_dblib.dll (still using the freetds libs).
Allow the build of both versions in the same process
use the static dblib.lib to avoid the need for extra dll's
add --with-freetds option to win32 build.
TODO make it work when both mssql and freetds is included or bail out with an error
Adding missing defines and lib/include paths
oops. this should be with and not enable
Adding mssql config file for the new build system