Well. CDATA, and I suppose PCDATA also (I didn't even know that existed) are blocks within an XML file that are declared as 'deviant' from the natural XML format.. So If you put your dlls or whatever into an XML file, that wouldn't be converting them into XML, it would be wrapping XML tags around them and saving them as XML.

What you want to do avani, doesn't make a whole lot of sense right now. Why do you want to send DLLs in XML messages? There is probably a more normal solution to what your trying to do, i.e. loading a local DLL based on instructions in XML messages, or initializing the download of a DLL based on instructions in an XML message.

Although I suppose you could theoritically 'paste' program code inside XML and send it around, you cannot convert the syntax of a compiled DLL/EXE (or most compilable source code) into the syntax of an XML file. There's too many reasons why not.