Hi! Sorry for delay in response and absence of direct help. I use SDK which called "PSDK Vista" and DirectX called "DXSDK_Mar09.exe" BR -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120730/82d256d3/attachment-0001.html>