Problem: Failed to create a component TextBox using drag and drop for a Windows Mobile client application. Error messages provide additional information.
Failed to create component 'TextBox'. The error message follows: 'System.IO.FileLoadException: Could not load file or assembly 'Microsoft.WindowCE.Forms, Version=3.5.0.0,Culture=neutral, PublicKeyToken =...'
Explanation: This indicates you must use a Windows command to complete the action.
Use the Windows command gacutil /i Microsoft.WindowCE.Forms.dll to add the assembly to the cache.