sure no problem: First, you will need to activate the "Run Script" action in the PDFCreator profile settings\actions tab. Also disable the "Opne Email Client" action.
Then, search for the outlook.exe on your computer and enter the full path to it into the "Script File" textbox and /a into the teextbox for additional parameters, it should look similar to this:
(your outlook.exe will have a slightly different path as it is a different version). There is no need to write any scripts or do anything else, the action could also be called "run a script or any application" and in this case you tell it to run outlook. The parameter /a will cause Outlook to attach the created file.