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Create 30 Day trial version

P: n/a
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
Mar 22 '06 #1
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5 Replies


P: n/a

"Niclas" <li*************@hotmail.com> wrote in message
news:ee*************@TK2MSFTNGP09.phx.gbl...
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..


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

Mar 23 '06 #2

P: n/a
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" <li*************@hotmail.com> schreef in bericht
news:ee*************@TK2MSFTNGP09.phx.gbl...
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

Mar 23 '06 #3

P: n/a
"Niclas" <li*************@hotmail.com> schrieb:
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..


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

<URL:http://msdn.microsoft.com/library/en...nlicensingcomp
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>

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>

Mar 23 '06 #4

P: n/a
Herfried,

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

Cheers

Niclas
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> wrote in message
news:uy**************@TK2MSFTNGP12.phx.gbl...
"Niclas" <li*************@hotmail.com> schrieb:
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..


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

<URL:http://msdn.microsoft.com/library/en...nlicensingcomp
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>

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>

Mar 23 '06 #5

P: n/a
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
"Cor Ligthert [MVP]" <no************@planet.nl> wrote in message
news:eq**************@TK2MSFTNGP09.phx.gbl...
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" <li*************@hotmail.com> schreef in bericht
news:ee*************@TK2MSFTNGP09.phx.gbl...
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


Mar 23 '06 #6

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