I want to know what access vba or windows function can extract the MAC ID of the motherboard. I want extract this at the install the access application and on running this application i want compare the first id mac with real id mac.. in the case of idmac1#idmac2..the application whose moved on another pc and don't run..
Thank's .. and excuse me for bad english..

You would definitely need to use API Calls, and maybe you can start by looking here:

http://www.mvps.org/access/api/index.html

The following link on the same site will read a value from the registry:

http://www.mvps.org/access/api/api0015.htm

HTH,

Beth M