File list (Check if you may need any files):
...............................\Manifest.xml
...............................\PollingWebPart.cs
...............................\PollingWebPart.ddf
...............................\PollingWebPart.webpart
...............................\PollWebPartStyles.css
...............................\Properties
...............................\..........\AssemblyInfo.cs
...............................\..........\PollingWebPart.snk
...............................\Utilities
...............................\.........\IWSSUtilities.cs
...............................\.........\RemoteInterfaceFactory.cs
...............................\.........\RevertToAppPool.cs
...............................\.........\WSSUtilities.cs