I've tried NuSOAP, I've tried the SOAP package built in to PHP, I've tried things in between--and still nothing seems to work. I add the Web reference in VS.NET just fine. The closest I can seem to get is this error: "Server found request content type to be 'text/html; charset=ISO-8859-1', but expected 'text/xml'." I've poked around Google but can't seem to find anything that would match my situation. The most similar talks about SOAP::Lite, but that's not what I'm using. (In this case, I'm using NuSOAP.) Is there something I'm missing? Is it simply impossible for a C# client (specifically, that bastardly PocketPC) to talk SOAP to a PHP server?