1. Start VS 200[5][8] and create a new class library
2. Sign your class library and determine the publickey token (use reflector.NET for example)
3. Create a new class in your library with the following code:

   using System;
   using System.Collections.Generic;
   using System.Text;
   using System.Web.UI.WebControls.WebParts;
   namespace SimpleWebpart
   {
       public class SimpleWebPart : WebPart
       {
           private string displayText = "Hello World!";
   
           [WebBrowsable(true), Personalizable(true)]
           public string DisplayText
           {
               get { return displayText; }
               set { displayText = value; }
           }
   
           protected override void Render(System.Web.UI.HtmlTextWriter writer)
           {
               writer.Write(displayText);
           }
       }
   }
   

4. Add the following line of code to your AssemblyInfo.cs:

   [assembly: AllowPartiallyTrustedCallers]
   

5. Edit your web.config to add a safecontrol entry (remember to use the public key token as determined in step 2):

   <SafeControl Assembly="SimpleWebpart,Version=1.0.0.0,
     Culture=neutral,PublicKeyToken=XXXXXXXXXXXXXXX"
     Namespace="SimpleWebpart" TypeName="*" Safe="True" />
   

6. Copy the class library dll to the bin directory of your webapplication
7. Create a site collection if not already available
8. Go to Site Actions –> All settings –> Web parts. Choose New and add your web part to the site gallery.
9. Edit the page and add your webpart.

1. Create a SSP on a new web application (optional; you can assing your website to an existing SSP)
2. Change association to use the new SSP
3. Open the new SSP via Shared Services Administration
4. Click User Profiles and Properties
5. Click Full Import
6. Go back to SSP
7. Click Search Settings
8. Click Content Sources and Crawl Schedules
9. Set “Use this server for serving search queries” enabled (Operations –> Services on Server –> Office Search server”
10. Be sure that the specified accounts have enough rights to access the websites

When you have webparts on your page that are no longer available SharePoint throws an exception. To remove the webparts from the page that are no longer available navigate to the url

http://YourServer/Pages/[your page in error]?contents=1

Checkout the page; delete the webpart; and check in. Page can be loaded again!

Add the following line to your configuration section in the machine.config (be sure to locate any existing runtime item first)

<runtime><generatePublisherEvidence enabled="false"/></runtime>