this is exactly the errors messages: 22>------ Rebuild All started: Project: samples, Configuration: Release-Static Win32 ------ 22>Performing Makefile project actions 22>auddemo.c 22>LINK : fatal error LNK1181: cannot open input file 'Iphlpapi.lib' 22>NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 9.0\VC\bin\cl.EXE"' : return code '0x2' 22>Stop. 22>Project : error PRJ0019: A tool returned an error code from "Performing Makefile project actions" and this the place where the .lib is used in makefile of sample project: LDFLAGS = $(BUILD_FLAGS) $(LIBS) \ Iphlpapi.lib ole32.lib user32.lib dsound.lib dxguid.lib netapi32.lib \ mswsock.lib ws2_32.lib gdi32.lib advapi32.lib oleaut32.lib 2014-06-05 12:52 GMT-07:00 mustapha alouane <alouane.mustapha at gmail.com>: > i tried to build the samples project , but it give me this error message: > > 22>LINK : fatal error LNK1181: cannot open input file 'Iphlpapi.lib' > > i tried to add the .lib but i don't know how to do this using the makefile > > please help? > > BR > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140605/ae2b5468/attachment.html>