With the releases of VS 2012 and 2013 it really is not needed anymore. Though I do not know if you can build PJSIP with the express versions. -----Original Message----- From: pjsip [mailto:pjsip-bounces@xxxxxxxxxxxxxxx] On Behalf Of Tom?? Valenta Sent: Wednesday, March 12, 2014 2:23 PM To: pjsip at lists.pjsip.org Subject: Visual Studio 2010 build Hi all, some time ago I posted a script that removes mobile platforms from Visual studio solutions and projects. It removed everything except Win32 so I am sending new version that preserves x64 platform as well. Save the script to pjproject root and run: CD \path\to\pjproject \path\to\php.exe _pj_rm_mobile.php And build PJSIP with VS 2010 smoothly! Cheers, - Vali PS. If someone rewrote the script to Python, please, post it. :-)