An MS4W release will happen every 3 months. You can follow along the process through the issue tracker’s roadmap.


MS4W 3.3.1 marks the last official release of the MS4W 3.x series. Security fixes to PHP 5.6.x have ended. All MS4W users are strongly recommended to move to MS4W version 4. Please note that after 1 September 2019, MS4W 3.3.x will be removed from the main download page.

Requests for changes and enhancements to MS4W should be filed in the MS4W issue tracker.

Custom support is always available from Gateway Geomatics.


Please contact Gateway Geomatics to help support MS4W so the whole community can benefit from its innovative development.

Proudly Developed & Maintained by Gateway Geomatics (c) 2020