I am working in SharePoint 2010, I have created a new document library with a custom content type. I need to have the content type associate with an existing infopath form. Is there a way that I can associate the form with my new content type so that my content type columns are the same as the fields in the form? I have seen something about being able to create a content type from a form upon creation, but since I did not create the form is there a way to achieve the same result without having to recreate the form?
Then you should used a forms library and create your own custom content type that inherits from Document Content Types > Form. There's not a way to do this with an existing content type that inherited from Document. Plus side is, if your fields are already in the inforpath form, all you have to do is promote them when you publish the form to SharePoint.