Protect application against copy

[PedroAlex]

Hello.

how can I ensure that an application only works on a given pc.
In other words, I want to protect an application so that it can only be executed on that pc.
Has anyone done anything like this?
Any opinion on the correct way is welcome

Many thanks.

[skiman]

You can check on the MAC address.

[Victorio]

I have not this on my app, but one of application as I have work with this system :

1. when install program, this generate key file, with content info about PC, SID, hdd type, IP adress, mac adress, license key of windows and more other info
2. this file send to developer site, where this file was encrypted (crypt key know only developer),
3.file return to user and app read this file , decrypt, when file is correct , program runs.

I mean, this is old outdated system...

Or other software use test license "online" how it works I do not know, but when I want for example HDD in PC, I must call them to unblock license, and again activate with new hardware.

[PedroAlex]

It seems to me that the simplest and most effective way is get the serial number of the harddisk.
Do you know any way to get the hard disk serial number?

[Auge_Ohr]

Do you know any way to get the hard disk serial number?

use WMI Win32_DiskDrive

[Koverhage]

so you have the same problems as other applications.
If the harddisk changed, the app doesn't work.

[PedroAlex]

Jimmy,
Thank you for your always great availability.
I Will try your sugested solution.

Klaus.
that's the idea.
I just find it strange, as a programming language that costs a fortune, not having low-level comands for these basic operations.
At times I tried to use Volserial(), but this command failure in disks cloning situations.

[unixkd]

Hi

Xbase++ provides the means to access API and with WMI you can access a lot of windows entities effortlessly.

Joe