I'm developing an application that will print documents without any user interaction. This is to be done by reading the registry entries under HKEY_CLASSES_ROOT\<document type>\shell\print and HKEY_CLASSES_ROOT\<document type>\shell\printto.
I'm trying to find out what are the standard subkeys and variables under these sections without any luck. I realize that e.g. the document type "Word.Document.8" has both a "command" and a "ddeexec" subkey while some other document types has no "ddeexec" sub key.
Do you know where to find information on specifications on what is the standard regarding subkeys under HKEY_CLASSES_ROOT\<document type>\shell?
I'd also value info on how these keys are to be used.