So feel free to test it:
http://eac.qme.nl/eAccelerator_v9_6_0_svn371_for_php_v5_3_1.zip
eaccelerator.dll = v9.6.0-svn371 for PHP 5.3.1 NTS VC9eaccelerator_ts.dll = v9.6.0-svn371 for PHP 5.3.1 VC9