Yassin,

>I am in the process of writing some customization that integrates with an ERP system called Microsoft Dynamics and they have exposed some Visual Studio 2005 Tools which you can use to do integration in .NET. They have a Windows Form Class DexUIForm which you can inherit from so your custom forms can have the same look and feel as ERP system windows.
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>Since .NET does not support multiple inheritances and I am writing most of my business objects using MM.NET, how do I go about using mmbusinessform class and the Form class provided by Microsoft DexUIForm which I don’t have the source code, so I can take advantage of both worlds.

There's really no way to subclass from two different forms, so it may be best to create a subclass of mmBusinessForm that contains the look and feel you want by copying the appropriate UI elements from the DexUIForm.

Best Regards,