Create 30 Day trial version

  • Thread starter Thread starter Niclas
  • Start date Start date
N

Niclas

Hi,

Does anyone have any advice on how to best develop a 30 day trial version.
Assume that a timestamp when the app was first installed should be stored
somewhere on the target system, but I need to understand how this can not be
simply bypassed by removing this file..

Niclas
 
Does anyone have any advice on how to best develop a 30 day trial version.
Assume that a timestamp when the app was first installed should be stored
somewhere on the target system, but I need to understand how this can not
be simply bypassed by removing this file..
Click to expand...

Usually it's hidden somewhere obscure in the registry. Or the program goes
out to the net to see if it is still valid.
 
Niclas,

As for ever on this kind of questions. This is not a newsgroup question.
These dotnet newsgroups are easily to search on Google.

Therefore if it is answered it is not hidden anymore.

Cor
 
Niclas said:
Does anyone have any advice on how to best develop a 30 day trial version.
Assume that a timestamp when the app was first installed should be stored
somewhere on the target system, but I need to understand how this can not
be simply bypassed by removing this file..
Click to expand...

I suggest to use existing solutions instead of building one yourself.

<URL:http://msdn.microsoft.com/library/en-us/cpguide/html/cpconlicensingcomp
onentscontrols.asp>

<URL:http://windowsforms.net/articles/Licensing.aspx>

Free:

Aspose.License
<URL:http://www.aspose.com/Products/Aspose.License/>

Commercial:

XHEO|Licensing
<URL:http://www.xheo.com/products/enterprise/licensing/>

Infralution Licensing System
<URL:http://www.infralution.com/licensing.html>

XHEO|Licensing wurde in Newsgroups mehrfach empfohlen.

Desaware LicensingSystem
<URL:http://www.desaware.com/products/licensingsystem/>

SoftwarePassport Product Information
<URL:http://siliconrealms.com/armadillo.shtml>
 
Herfried,

Many thanks for the info. I am currently reviewing the aspose free solution
which I think will meet my requirements.

Cheers

Niclas
 
Cor,

Trust me, a search for "develop 30 day evaluation" on Google does not
produce a very constructive response. Still think a "best practice" question
is valid in this newsgroup.

Niclas
 
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