Win 64 XData Server

I used the wizard to create an XData Server but it won't let me add the Win64 platform. I'm sure I have seen this question somewhere but can't find it. Any ideas?

Edited the dproj file and added it to the <Platforms> node and all is fine

that wasn't perfect as there were some files that weren't being found (windows being one of them). In the end I killed the project files and pasted the old dpr source into a new project and that did the trick.