License & Validity period

[Anonymous]

I have created some AutoCAD commands, they are really very convenient and powerful, I want to protect my labor, so I think there are two solutions can solve this problem.

1, License registration mechanism, I do not want to anyone can use them just copy to any computer.
2, Validity period, after a period of time, it couldn’t continue to use.

But I don’t know how to achieve the above effects for AutoCAD custom program, maybe there are some ready-made solutions?

I need help, any help much appreciate, very thanks.

[Matti72]

Did you thought about the Autodesk App Store?

There you have an entitlement api with which you can copy protect your apps.....

http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=24243607

This would be a ready made solution.

[Keith.Brown · Accepted solution]

I use CryptoLicense.  It comes with the source code for a .net activation server that you can use to automatically send the user an activation code once they purchase the plugin from the autodesk store.

[Anonymous]

No, the company hasn’t connect the Internet, and the program create by me is very special, it’s only use to a particular workflow, it doesn’t feel easy to use the AutoCAD App Store.
I hope to have a simple and effective way to achieve what I said function, maybe some existing code is ok, I can have a try.

[Anonymous]

I can't use the AutoCAD App Store.

[Keith.Brown · Accepted solution]

Crypto license doesn't need the Internet nor does it need the App Store.  It does however work well with them.

[Anonymous · Accepted solution]

Thanks, Keith.Brown,
The CryptoLicensing is a professional software, it’s very good, but it’s too professional for me, I just wrote dozens of commonly used commands, the company did not give me anything in return, then I have to pay to buy a software to protect my little program?
Besides, I'm not an American, but need to pay in dollars, I think I felt very troublesome. Forget it, I'm going to write some simple code to implement valid,
Thank you so much for your help

[_gile · Accepted solution]

Hi,

The simplest way should be storing the first use date (DataTime) somewhere on the machine (registry, external file) and compare this date with the actual date each time you application is loaded.

[Anonymous · Accepted solution]

Yes, this is the simplest way, so I am plan to use SQLCeDatabase, because of it has a password, but if each command need to access the database will cost much time, so I want to find a temporary variable like system variable as my new post mentioned, then check the date one time when automatically loaded, then set the temporary variable, then each command check validate by this variable.
But, now it led to a new porblem about automatically loaded. you can find in me new post.

[yoitsarun]

could anyone explain this more?, and this link is not working now.