Thank you kindly for the reply. I built PJSIP with VS2008, and now trying to use the compiled library project in VS2010. My reasoning is because VS2010 Supports Windows Phone, but VS2008 does not. With that said, I have completed your instructions. I am still having trouble with section 5.1. In 5.2, it seems VS2010 has already done that part automatically and there is no user interface any longer with make changes, however it can still be viewed and libpjproject-i386-win32-vc8-Release-Static.lib With 5.1 of your instructions, I am still having issues. I have included the folders per your instructions, but VS2010 still cannot find the #include files. I am assuming the <Project Properties> means my own project, and not the pjsip project? The directory I am using is. C:\Users\trent\Desktop\VOIP\pjproject-2.0-rc\pjproject-2.0-rc\pjsip\include I have also added different variations including: C:\Users\trent\Desktop\VOIP\pjproject-2.0-rc\pjproject-2.0-rc\pjsip C:\Users\trent\Desktop\VOIP\pjproject-2.0-rc\pjproject-2.0-rc C:\Users\trent\Desktop\VOIP\pjproject-2.0-rc\ I even added up to where the include files actually reside. What am I doing wrong? From: pjsip-bounces@xxxxxxxxxxxxxxx [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Fedot Fedotov Sent: Thursday, June 07, 2012 2:18 AM To: pjsip list Subject: Re: Help understanding instructions for windows Hello! first of all - Use VS 2005 or VS 2008! and you will not have additional problems with build pjproject and add it to your own project 4. I set PJ_WIN32=1 in solution, when I used PJproject library and I put this macros in: <Project Properties>->Configuration Properties->C/C++->Preprocessor->Preprocessor Definitions-> add one more line "PJ_WIN32=1" 5. About linking pjproject library: to 2 things: 5.1 <Project Properties>->Configuration Properties->Linker->General->Additional Library Directories-> add one more line <path to directory with debug and (or) release pjsip library> for example D:\Projects\MyProject\libpjsip 5.2 <Project Properties>->Configuration Properties->Linker->Input->Additional Dependencies->add one more line libpjproject-i386-Win32-vc8-Debug.lib (for debug, and for release configuration of your own project - add release pjproject library) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120607/3521e929/attachment.html>