Hi<br><br>I have done as you mentioned in class derived from H323EndPoint.<br><br>I added capabilities as follows.<br><br>AddAllCapabilities(0, 0, &quot;*&quot;);<br>AddAllUserInputCapabilities(0, P_MAX_INDEX);<br><br>I am using Visual 
Studio.Net 2003 for my application.<br><br>This is the trace in the output window of VS 2003<br><br><br>&nbsp;Loaded &#39;C:\PWLIB_PLUGINS\h261vic_pwplugin.dll&#39;, No symbols loaded.<br>&nbsp;Loaded &#39;C:\PWLIB_PLUGINS\h263ffmpeg_pwplugin.dll&#39;, Symbols loaded.
<br><br>I guess the dlls are loaded but codecs are not actually plugged in because of some reason.<br>When I checked the capabilities only two codecs&nbsp; G711 U and A law are there in it and remaining 8 enteries show<br>H323_UserInputCapability string .
<br><br>Please Help!!!<br><br><br>