Hey,
I've had this problem a few times recently. I'm working with Visual C# 2005 Express Edition.
I have a Windows Form Control that depends upon a legacy DLL file. At runtime the behaviour is fine as the DLL is in the output directory, but the Windows Forms Designer struggles with this control.
Unable to load DLL 'scilexer.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
The odd thing is that it managed to create the control fine in the first place, but subsequent attempts to edit it fail. The dll file it depends on has been added to the project, is in the main project directory and is in the bin\Debug directory. Do I need to put it somewhere else for the designer to find it?
Regards,
Chris