How can I store the date at which my application is started for first
time in it's exe file, and read it later?

Free components:

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

Commercial components:

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

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

what about home made solution?

Storing a date somewhere (in the registry, for example), is always
problematic because the user can easily change the date or remove the key.

Binding the license to hardware serial numbers introduces some problems too
when hardware is replaced.  This will require 24/7 support for activation
issues, which is very costly.

If you write the date to the exe then the virus scanners will pick it up as
suspect. If I remember correctly, the earlier versions of MS Office used to
write the registration info into an exe.

Herfried's solutions are not what you asked for. The ASPOSE is for licensing
controls, but not sure of the others. The ASPOSE has now been discontinued.

Crouchie1998
BA (HONS) MCP MCSE

I wouldn't suggest doing it this way for sure.  Also, anything you do will
be pretty easy to read with ILDASM, won't it?  And thus easily defeated
anyway.


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