# Re: Check for expiry in Shareware applications?

**URL:** <https://www.ruby-forum.com/t/re-check-for-expiry-in-shareware-applications/87324>\
**Category:** Ruby\
**Created:** [March 26, 2006, 5:48pm UTC](https://www.ruby-forum.com/t/re-check-for-expiry-in-shareware-applications/87324 "2006-03-26T17:48:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 26, 2006, 5:48pm UTC](https://www.ruby-forum.com/t/re-check-for-expiry-in-shareware-applications/87324/1 "2006-03-26T17:48:40Z")

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Hey Manveru,

well thanks for your nice thoughts!  
I was thinking about Erik V.'s rubyscript2exe programs when I  
wrote about non-open source software …  
I like what you wrote about komodo licenses. Maybe one can use  
some kind of RSA encryption of the system time or internet time at which  
the  
software was installed together with the machine name.  
Is there a way of determining the name of the machine you run  
Ruby on ?

Best regards,

Axel

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 26, 2006, 6:06pm UTC](https://www.ruby-forum.com/t/re-check-for-expiry-in-shareware-applications/87324/2 "2006-03-26T18:06:54Z")

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> well thanks for your nice thoughts!  
> I was thinking about Erik V.'s rubyscript2exe programs when I  
> wrote about non-open source software …

AFAIK, rubyscript2exe temporarily decompresses all scripts TO DISK on  
execution (so, all sources would be available to user) ☹

Victor.

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [March 26, 2006, 10:25pm UTC](https://www.ruby-forum.com/t/re-check-for-expiry-in-shareware-applications/87324/3 "2006-03-26T22:25:12Z")

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On Mar 26, 2006, at 10:48 AM, removed\_email\_address@domain.invalid wrote:

> well thanks for your nice thoughts!  
> I was thinking about Erik V.'s rubyscript2exe programs when I  
> wrote about non-open source software …

rubyscript2exe is basically a self extracting tarball, you won’t  
really be able to prevent people from changing the code. To quote  
from the perl faq: