What is the unique in any PC?

**vjshankwar** · June 30th, 2011, 02:50 AM

Hi all,

i want to know what is the unique in any pc.

i want to find a unique number of id to identify the pc.

please tell me what is the different and unique in any pc.

how can i find it?

please help me for this.

thanks in advance.

**VictorN** · June 30th, 2011, 03:21 AM

Probably, MAC address...
But why do you need it?

**vjshankwar** · June 30th, 2011, 07:27 AM

Mac address is changeable in certain condition.

**VictorN** · June 30th, 2011, 07:31 AM

Originally Posted by vjshankwar

Mac address is changeable in certain condition.

Well, which part of the PC is not changeable in any condition?

And, BTW, you haven't explained why you need it.

**vjshankwar** · June 30th, 2011, 07:42 AM

i need this for activation .

there is any hardware device which is unique for every pc.

**VictorN** · June 30th, 2011, 07:46 AM

Unique does not mean not changeable.

**blaurent** · June 30th, 2011, 11:29 AM

Hi,

I'm not the expert, but here's a suggestion.

If you need this only to register an installation of a software, why not generate a unique ID based on the MAC address & the current timestamp? This should make sure that for this installation instance the id is unique. I have to tell that people that know themselves in PC are able to change any two of these variables.

Let me know if this helped.

Laurent

**vjshankwar** · July 1st, 2011, 12:15 AM

Originally Posted by blaurent

Hi,

generate a unique ID based on the MAC address & the current timestamp? This should make sure that for this installation instance the id is unique.

Combination of MAC address and timestamp gives different id when second time request for activation.

here i need to chk previously generated key and provide already given key for activation.

so now what can i do?

**VictorN** · July 1st, 2011, 12:58 AM

Originally Posted by vjshankwar

...
so now what can i do?

Perhaps, you'll buy some third/party software that already can implement the activation.

**blaurent** · July 1st, 2011, 02:28 AM

Originally Posted by vjshankwar

Combination of MAC address and timestamp gives different id when second time request for activation.

here i need to chk previously generated key and provide already given key for activation.

I know that my suggestion was not solving your problem but rather pointing out that there is well known software out there that limits itself to a certain amount of active installations. Of course I'm not aware of the specifications of your software so I'm not the one telling you what to do. How about generating a key (serial number) for a given user (who needs to register in order to obtain it) and you simply combine this serial number (encoded) with the MAC address? I suppose that's closer to what you want to do.