Datetime for trial software?

[wavemill]

Hello!

I would like protect my software with a trial version.
For example 30 days.
But if i use dateTime, the user can changed the date and after 30 days
my software will be start again.
Have you got any idea?
Do you know any link, and tutorial to made protection for compact
framework application?

Best regards,

J.Berdoues

 

[Dieter]

Make a refistry key for the days software is used.

 

[Cantelmo Software]

oops! sorry!
RegMon work only on PC based :-(

Hi Dieter,
with RegMon from http://www.sysinternals.com/ you can spy the windows
registry :-o and remove check used day :-((

Marcello
www.cantelmosoftware.com

p.s.:
Try to Decompile this .NET demo application protected with my simple
obfuscator

your opinion is a lot important. tnx in advance for your attention and
eventual suggestions.

please download demo from:
http://xoomer.virgilio.it/cantelmosoftware/net/TryMe.zip

My Article on Code-Project:
http://www.codeproject.com/dotnet/Anti_BPX.asp
http://www.codeproject.com/dotnet/StackCrypt.asp