If you set useProxy="true" WebService will generated an HTTPRequestMessage as it is expecting to communicate with the FDS ProxyService which runs on a messaging backbone. The format of the message depends on the ChannelSet assigned to the WebService (or the defaults set for the DefaultHTTPS destination for secure URLs in services-config.xml). Instead of trying to deserialize an HTTPRequestMessage I think you should leave useProxy="false" (the default, btw) and just set the URL to your own custom proxy.
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of rzilist Sent: Friday, March 23, 2007 4:46 PM To: [email protected] Subject: [flexcoders] How to use Proxy script with Flex WebService? Hi folks, I'm consuming a webservice from secured domain which with no crossdomain.xml file at server root. To get around the "Security error accessing url" message, and as the only feasible solution, I wrote a proxy script in .NET and uploaded to the IIS server hosting the swf. Now, when I try to use the proxy script specifying useProxy="true" I get an error saying "File Not Found". How would I go about invoking my proxy script? I've tried the same way I do with Webservice, but all in vain. Please help. Thanks, Roman

