How to use two versions of MS Office Interop Assemblies in a C# Application?

Hi All,

Can any one let me know "How to make use of two versions of MS Office Interop Assemblies in a C# Application". I would like to make use of Interop 12 and Interop 14 dll's in my project. How would I do so? Can any one explain me step by step?

Regards,

G.V.N.Sandeep
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