I still get the same error. I tried building the solution but the build failed with the following error:

Error 2 Cryptographic failure while signing assembly 'C:\Program Files\Mere Mortals .NET Framework 2005\Mere Mortals Framework Windows Forms\obj\Debug\Mere Mortals Framework Windows Forms 2005.dll' -- 'Error reading key file 'c:\Program Files\Mere Mortals .NET Framework 2005\Mere Mortals Framework Windows Forms\keyPair.snk' -- The system cannot find the file specified. ' Mere Mortals Framework Windows Forms


Regards,

Jim

>Jim,
>
>>I followed the developer guide for adding the framework files to my windows project, but I got the following error:
>>
>>The designer could not be shown for this file because none of the classes within it can be designed. The designer inspected the following classes in the file: mmMaintenanceForm --- The base class 'OakLeaf.MM.Main.Windows.Forms.mmBusinessForm' could not be loaded. Ensure the assembly has been referenced and that all projects have been built.
>
>Try opening the MM .NET Windows Forms solution directly and see if you still get this error. There is actually a bug in VS 2005 that can cause this problem. In order to get around it you sometimes have to turn off Edit and Continue.
>
>Best Regards,