tu n'as pas un fichier read me ou un fichier activate ou activator ? C'est clair que ce n'est pas un truc original (tout comme les autres en vente sur Ebay) il faut donc le faire activer par un mot de passe et ne surtout pas faire l'activation par internet.
voici ce que j'ai trouvé dans un fichier word :
OP-COM 081016 installation and activation:
1. Copy the whole CD into your hard disk;
2. Plug the cable into the interface, then plug the USB end into your PC;
3. PC find the new hardware,
Install the USB driver as prompt;
The pc maybe will ask you from where to install the USB drier. Please select from:
OPCOM081016_ENDriver
4. Activation:
Click folder “Activate”->“Activate” ->click file” Activator.exe”, Will appear:
(You must activate from this path)

Click “Diagnostics”->Double click “AUTOMATIC VEHICLE IDENTIFICATION”->Click “KWP-2000” or “CAN”

Will appear:

Click “Activate”, will appear
Write the No. on a piece of paper.
Close the window and exit.
Open the software OP-COM.exe
Click “Diagnostics”->Double click “AUTOMATIC VEHICLE IDENTIFICATION”->Click “KWP-2000” or “CAN” ,will apper:

Write the no.

in the bottom of the software, click “Activate”, don’t click “On-line Activation” (“0” AND “O” is different, the No. is stochastic)
5. Click “Settings”->”test interface”, will appear:
Interface test ended successfully.

6. Finished – you can now operate the OPCOM when you connect the INTERFACE TO THE CAR