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You can try <a href="http://www.lockxls.com/product.asp" rel="ugc">LockXLS</a> I cannot vouch for the software as I have never tried it, but it was highly recommended on this site before.
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You can try LockXLS [http://www.lockxls.com/product.asp] I cannot vouch for the software as I have never tried it, but it was highly recommended on this site before.

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But a VB6 COM add-in would not work on 64 bit Office...
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But a VB6 COM add-in would not work on 64 bit Office...

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I have developed an add-in recently, i want to share it as a free license to everyone, but i want to strongly protect the VBA codes inside its modules. &nbsp; i know that the password protection is the weakest, &nbsp;also sharing the workbook and making it then add-in also is breakable, the shared workbook &quot;project is Unviewable&quot; works but i have found that users still break this.<br />
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i was wondering if there is any commercial software or any encryption software that can buy license that can protect my excel add-in.
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I have developed an add-in recently, i want to share it as a free license to everyone, but i want to strongly protect the VBA codes inside its modules.   i know that the password protection is the weakest,  also sharing the workbook and making it then add-in also is breakable, the shared workbook "project is Unviewable" works but i have found that users still break this.

i was wondering if there is any commercial software or any encryption software that can buy license that can protect my excel add-in.

VBA strong protection software

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.