Shouldn't you be asking the MicroSip people this? -----Original Message----- From: pjsip-bounces@xxxxxxxxxxxxxxx [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of sazzad hossain Sent: Thursday, May 17, 2012 5:33 AM To: pjsip at lists.pjsip.org Subject: help please HI, I have tried to compile the project MicroSip-3.0.15.src based on pjsip. I have added all necessary dependencies like ../lib;../ffmpeg/lib;"C:\Program Files\Microsoft SDKs\Windows\v6.0\Samples\Multimedia\DirectShow\BaseClasses\Debug_MBCS" and also the libraries imm32.lib version.lib winmm.lib and libpjproject-i386-Win32-vc8-Debug-Static.lib But when i try to build using visual studio 2008 i have found the following link error: Error 1 error LNK2019: unresolved external symbol _pjsua_vid_codec_set_priority referenced in function "public: void __thiscall CmicrosipDlg::PJCreate(void)" (?PJCreate at CmicrosipDlg@@QAEXXZ) microsipDlg.obj microsip Error 2 error LNK2019: unresolved external symbol _pjsua_call_get_vid_stream_idx referenced in function "void __cdecl on_incoming_call(int,int,struct pjsip_rx_data *)" (?on_incoming_call@@YAXHHPAUpjsip_rx_data@@@Z) microsipDlg.obj microsip Error 3 error LNK2019: unresolved external symbol _pjsua_vid_enum_devs referenced in function "public: void __thiscall CmicrosipDlg::PJAccountAdd(void)" (?PJAccountAdd at CmicrosipDlg@@QAEXXZ) microsipDlg.obj microsip Error 4 error LNK2001: unresolved external symbol _pjsua_vid_enum_devs SettingsDlg.obj microsip Error 5 error LNK2019: unresolved external symbol _pjsua_vid_enum_codecs referenced in function "protected: virtual int __thiscall SettingsDlg::OnInitDialog(void)" (?OnInitDialog at SettingsDlg@@MAEHXZ) SettingsDlg.obj microsip Error 6 fatal error LNK1120: 4 unresolved externals E:\Development\Sip_Yasar LinePhone\MicroSIP-3.0.19-src\Debug\microsip.exe microsip Please give me the solution immediately as soon as possible. Its urgent. BR, Sazzad _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org