Driver .INF File Help

> Hi,
>
> I'm trying to create a .inf file for my device. It seems to have
> trouble finding the C:\windows\system32\inf\driver.inf file and
> C:\windows\system32\drivers\driver.sys file. I copy these files
> manually, before launching the hardware wizard.
>
> The wizard detects the device and (I think) loads the driver.inf
> file because I see the name of the device that I entered into
> that file. Then I get the "This driver is not signed by microsoft"
> message, and I click "Continue Anyway".
>
> Then, it fails to find the driver.sys file, and I have to *manually*
> point to file to C:\windows\system32\drivers\driver.sys which is
> where it copies the file to anyways.
>
> How can I have my .inf file automatically detect the driver file
> that exists in C:\windows\system32\drivers\driver.sys?
>
> Thanks,
> Tim