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Using Licensing with Excel VBA

 
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newyuppie



Joined: 07 Nov 2006
Posts: 12
Location: San Diego, CA, USA

PostPosted: Tue Aug 10, 2010 2:57 pm    Post subject: Using Licensing with Excel VBA Reply with quote

I have an Excel sheet with VBA macros that I would like to apply a license to.

I imagine I would need to design a new .NET .dll wrapper that exposes the infralution.licensing.dll parameters for COM interop, and then reference that .dll from Excel.

Has anybody had any experience doing this, or any suggestions or comments?

Thanks!
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Infralution



Joined: 28 Feb 2005
Posts: 5027

PostPosted: Sat Aug 14, 2010 3:59 am    Post subject: Reply with quote

Sorry - I missed this post somehow. While you could use ILS like this to license and Excel sheet it would be vulnerable to someone spoofing the COM interface (since unlike .NET references there is no strong name checking of COM interfaces). If you could put some of your application functionality into a .NET assembly (which used ILS for the licensing) this would make your application much less vulnerable to cracking.
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