A bunch of Pluggable Transport related .pyd files depend on msvcr90.dll which we do not ship
There are a bunch of .pyd files (namely _ctypes.pyd, _hashlib.pyd, _socket.pyd, _ssl.pyd, bz2.pyd, pyexpat.pyd, select.pyd and unicodedata.pyd) which directly depend on msvcr90.dll which we do not ship. We should get rid of that dependency if we don't need it.