Add the follow to the web.config file to resolve the following errors when a page tries to display. PS: If your AVI do not open ( CvCapture* aviSrc = cvCaptureFromAVI(inputVideo); returns a zero pointer), its probably because the file encoded in a way the openCV cant read it. Not able to add Controls to the webpart in MOSS 2007. manasa1623 31-Oct-07 5:21. manasa1623: 31-Oct-07 5:21 : Unknown server tag 'asp:UpdatePanel'. The proxy is embedded by using the