I want to create a custom content type in SharePoint 2010. To do this i need a document template. I want to use the excisting one (/_layouts/CreateWebPage.aspx) of a wiki page and modify it. Does anyone know where i can fint this?
You can find it in the below folder:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\LAYOUTS
What ever you change will be affected to all sites using that page.