FIX: Error message when you view a page in design mode after you recompile a .NET Framework 3.5 Service Pack 1-based project: "Error creating control – 'ControlInstanceName [text]' could not be set on property 'PropertyName'"

On a computer that has the Microsoft .NET Framework 3.5 Service Pack 1 (SP1) installed, you have a Web site or a Web application project that contains some Web controls. When you view the page in design mode after you recompile the project, you receive an error message that resembles the following:

Windows XP and Windows Server 2003

To resolve this problem in Windows XP and in Windows Server 2003, apply the hotfix rollup package that is described in Microsoft Knowledge Base article 969612. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Windows Vista and Windows Server 2008

To resolve this problem in Windows Vista and in Windows Server 2008, download and apply the hotfix that is described in Microsoft Knowledge Base article 967535. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.