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"Licensing" utility for protecting my Excel code
I would like to make some worksheets with VBA and cell
formulas available to peers in my profession, for a nominal fee. "unlicensed" users would be able to view or print the workbook, but not change it. "licensed" users would have full use of it. I don't want to use a password, because passwords can be shared. I want to "license the workstation". I have AutoCAD tools that look for a "license" file before they're executed. That file stores the workstation serial number and an authorization code. If the information matches, it allows the tool to execute. It's very simple (and, probably, easy to break), but it's effective. I'd like to do something similar with my Excel tools. Does anyone have any suggestions to point me in the right direction?? |
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