As per my understanding GUID and NetCfgInstanceId are same .
Now, i am able to generate a new GUID using tool and also changed this value in my code .
One more question i want to ask i.e.:
When i install my services using INF file via LAN properties, it properly installed and value is also updated in registry.
But when i prepare a uncertifed installer using my .sys, .pdb and changed .inf file, it installed on my system but all registry parameters is not updated in registry.These parameters are updated using my code .sys file.
So, i want to ask is there in any difference if we installed same file using LAN properties and using installer.Also is there any difference in certified build and insatllation of uncertifed build through disable driver signature enforcement.
Regards,
Vikash