Hello! A college is having some issues in creating chm files from oxygen with using the DITA Scenarios. He's running oXygen 10.3 on Windows Vista Ultimate. When creating a scenario and converting, it fails on not finding the hhc.exe file in "C:\Program Files\Help Workshop\hhc.exe". This is completely correct, as hhc is located in "C:\Program Files\HTML Help Workshop\hhc.exe". The wrong path is automatically included by oXygen when running a dita transformation if the transtype is set to htmlhelp. The end of the call to dita-ot contains "-DHTMLHelpCompiler=C:\Program Files\Help Workshop\hhc.exe". DITA-OT throws an error message that it's not possible to reassign an already set property. hhc.dir is correctly set but HTMLHelpCompiler is overridden by the parameter from oxygen. I can't find the reason for this parameter being added, so it would be nice if you can tell me where to start looking. Br, Jan -- Jan Nylund Senior System Designer Citec Information Oy Ab