In my previous post I wrote about using IgnoreIfAlreadyExists=“True” for preventing of adding webparts multiple times. It works fine until you redeploy your project. Another approach is to use a user control with you webpart. Add mapped folder CONTROLTEMPLATES. Create a new user control, add you assembly and your webpart. Then you can add this user control wherever you need it. <%@ Register tagprefix="SPSWC" Namespace="Microsoft.SharePoint.Portal.WebControls" Assembly="Microsoft.SharePoint.Portal, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <SPSWC:SocialCommentWebPart runat="server" AllowEdit="True" AllowConnect="True" ConnectionID="00000000-0000-0000-0000-000000000000" Title="Note Board" IsIncluded="True" Dir="Default" PartImageLarge="" IsVisible="True" AllowMinimize="True" ZoneID="" ID="g\_5937b022\_83bb\_40cb\_b68f\_bd565bf96885" FrameState="Normal" ExportMode="All" TitleLocIdNum="0" AllowHide="True" SuppressWebPartChrome="False" DetailLink="" ChromeType="None" DescriptionLocId="Null" TitleLocId="Null" MissingAssembly="Cannot import this Web Part.