An item template for Windows Store application

Hi,

I have a extension that contains an item template. The problem is that I don't see the item template when I want to add new item for a windows store application. Otherwise if I have a desktop application the item template is available. My question is what have to be set in the .vstemplate file so the item template be available for Windows Store applications.

I use this template data without success:

  <TemplateData>
    <Name>VfxDataForm</Name>
    <Description>VfxDataForm item template.</Description>
    <TemplateGroupID>Windows Store</TemplateGroupID>
    <ProjectType>CSharp</ProjectType>
    <SortOrder>10</SortOrder>
    <RequiredFrameworkVersion>4.0</RequiredFrameworkVersion>
    <DefaultName>VfxDataForm.xaml</DefaultName>
    <Icon>__TemplateIcon.ico</Icon>
    <NumberOfParentCategoriesToRollUp>2</NumberOfParentCategoriesToRollUp>
  </TemplateData>

Thanks in advance