http://blogs.msdn.com/sqlservercompact/archive/2008/10/06/how-to-authoring-a-64-bit-clickonce-bootstrapper-package-in-visual-studio-2008-sp1.aspxBefore going into further details first “ Disclaimer : This is just to help and does not guaranty that this is approved my employer or me J ” Location of SQL Compact Bootstrapper &lt;BootstrapperDir&gt; \Packages\SQL Server Compact Edition\ &lt;LocaleCultureDir&gt;en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/sqlservercompact/archive/2008/10/06/how-to-authoring-a-64-bit-clickonce-bootstrapper-package-in-visual-studio-2008-sp1.aspx#8977876Mon, 06 Oct 2008 17:10:45 GMT91d46819-8472-40ad-a661-2c78acb4018c:8977876infoblog &raquo; How to: Authoring a 64-bit ClickOnce Bootstrapper package in Visual Studio 2008 SP1<p>PingBack from <a rel="nofollow" target="_new" href="http://blog.a-foton.ru/index.php/2008/10/06/how-to-authoring-a-64-bit-clickonce-bootstrapper-package-in-visual-studio-2008-sp1/">http://blog.a-foton.ru/index.php/2008/10/06/how-to-authoring-a-64-bit-clickonce-bootstrapper-package-in-visual-studio-2008-sp1/</a></p>