http://blogs.msdn.com/smartclientdata/archive/2005/11/23/496314.aspxRob Walters, from the SQL Team, and I worked on an article for working with SQL Express in Windows Forms applications. There are a couple of quirks when it comes to Click Once that have been included in this MSDN article. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsse/html/EmSQLExCustApp.aspen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/smartclientdata/archive/2005/11/23/496314.aspx#535706Tue, 21 Feb 2006 00:45:43 GMT91d46819-8472-40ad-a661-2c78acb4018c:535706AnonymousOs the source code available?http://blogs.msdn.com/smartclientdata/archive/2005/11/23/496314.aspx#612467Thu, 01 Jun 2006 04:06:17 GMT91d46819-8472-40ad-a661-2c78acb4018c:612467Rob CSteve, <br> <br>I built a C# .NET desktop app and have embedded a SQL Express database within it. &nbsp;My question is, do I need to install the entire SQLExpress install for this to work? <br> <br>I'm really disappointed if this is the case. &nbsp;It means huge downloads for my end users. &nbsp;The .NET Framework is bad enough, but to add on the SQLExpress seems so bulky. &nbsp;My installed project comes in at just under 8Mb. <br> <br>Is there a way to do a lightweight install of Express to meet my needs? <br> <br>Your help would be greatly appreciated. <br> <br>