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Excel Add In trial

This project received 5 bids from talented freelancers with an average bid price of $476 USD.

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Employer working
Skills Required
Project Budget
$250 - $750 USD
Total Bids
5
Project Description

I created an excel add in and I was letting people use it for free (to evaluate) . I revised the add in and I want to sell it now. I will allow a 30 day trial period and only want to allow one installation per computer. Once the trial period expires, I want the new add in disabled(unless purchased) and want to prevent the user from reinstalling the older free(evaluation) add-in that does not have the trial period.

I will also need a website to market the add-in and accept payments/keep track of users and bill monthly etc. I have attached the evaluation file.

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