Hello all, I posted this question last week in the soap4r group but haven't received any replies. So I'm hoping maybe someone here can help. My situation is this; I 've generated the default/driver/ mappingRegistry using wsdl2ruby for a client that will consume .Net web service I have created a customized SOAP::Filter::Handler that takes care of assigning the soap: namespace to the elements, and I've created a customized SOAP::Header::Handler that takes care of the custom auth header elements. So far, so good. I've compared the generated request between a working .Net client and my ruby client, and they are virtually identical with one exception; for the initial authentication call (e.g. signon), there is no payload in the soap:Body. The .Net client generates this empty body as <soap:Body/> (self closing) whereas the ruby version generates <soap:Body></soap:Body>. I realize both are perfectly valid and should be interpreted the same way, but unfortunately, this is not the case. I don''t have access to the source code for this web service, but I was able to decompile the dll, and guess what... Whoever wrote it, has some code that is checking specifically for the existence of a self closed body tag. When the code doesn't see the self closed tag, it assumes there will be a payload, and proceeds to do a substring on it to get a known piece of data out. Unfortunately again, this is causing a .Net exception to be thrown (index out of range type of exception) which blows the whole deal. Ideally, I'd have the web service modified to use an XML DOM parser instead, but I don't have this luxury. So, my question is; Is there any way to override the default behavior in soap4r to make it render the empty body with a self closing tag (<soap:Body/>)? I really hope so because I'd hate to have to scrap this project over something so silly! Thanks in advance!