To add own form on the desktop Web application, you need:

  1. To open a file site map ASP.NET (web.sitemap default).
  2. Add the necessary elements of the menu tree.

Was:

<?xml version="1.0" encoding="utf-8"?>
<!-- FlexberryAutogenerated="True" -->
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0">
  <siteMapNode title=Desktop description="Desktop application" url="~/Default.aspx" roles="*">
    <siteMapNode title=Administration roles="admin" xmlns="">
      <siteMapNode title=Users url="~/forms/Security/User/UserL.aspx" />
      <siteMapNode title=Roles url="~/forms/Security/Role/RoleL.aspx" />
      <siteMapNode title=Classes url="~/forms/Security/Class/ClassL.aspx" />
    </siteMapNode>
    <siteMapNode title="The accounting system of credits" roles="*" xmlns="">
      <siteMapNode title="Loan officer" description="" url="~/forms/KreditnyjInspektor/KreditnyjInspektorL.aspx" />
      <siteMapNode title="Credit" description="" url="~/forms/Kredit/KreditL.aspx" />
      <siteMapNode title="Client" description="" url="~/forms/Klient/KlientL.aspx" />
    </siteMapNode>
  </siteMapNode>
</siteMap>

Was:

<?xml version="1.0" encoding="utf-8"?>
<!-- FlexberryAutogenerated="False" -->
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0">
  <siteMapNode title=Desktop description="Desktop application" url="~/Default.aspx" roles="*">
    <siteMapNode title=Administration roles="admin" xmlns="">
      <siteMapNode title=Users url="~/forms/Security/User/UserL.aspx" />
      <siteMapNode title=Roles url="~/forms/Security/Role/RoleL.aspx" />
      <siteMapNode title=Classes url="~/forms/Security/Class/ClassL.aspx" />
    </siteMapNode>
    <siteMapNode title="The accounting system of credits" roles="*" xmlns="">
      <siteMapNode title="Loan officer" description="" url="~/forms/KreditnyjInspektor/KreditnyjInspektorL.aspx" />
      <siteMapNode title="Credit" description="" url="~/forms/Kredit/KreditL.aspx" />
      <siteMapNode title="Client" description="" url="~/forms/Klient/KlientL.aspx" />
      <siteMapNode title=Google description="" url="http://www.google.com" roles="*" />
    </siteMapNode>
    <siteMapNode title=Reports roles="*">
      <siteMapNode title=Reports description="" url="~/forms/Otcheti/Otcheti.aspx" />
    </siteMapNode>
  </siteMapNode>
</siteMap>

In the end, we get the following:

Read more about site map can be viewed in the MSDN.