Hi, thanks for the reply.

The only reason Im after WES7 is to get a copy of either usbser.sys or whatever repository its stored in, I suspect its to be found here:

C:WindowsSystem32DriverStoreFileRepositorymdmcpq.inf_amd64_neutral_9bb71004e7b8f7ae

Sadly that doesnt exist on my machine, and I cant find either on the net separately, I remember being able to grab various dlls etc from the net for 98, XP etc but no go on this one.

Im after the repository mentioned above because the EBB .inf uses a call to mdmcpq.inf to get usbser.sys where it needs to go, and it cant find it.

The driver error says theres an invalid section in the .inf, and device manager says this:

The drivers for this device are not installed. (Code 28)
The system cannot find the file specified.
To find a driver for this device, click Update Driver.

when it sees the EBB as a Com device

When it sees it as an EBB it says:

This device is not configured correctly. (Code 1)
A service installation section in this INF is invalid.
To find a driver for this device, click Update Driver.

Or sometimes:

Reinstall the drivers for this device. (Code 18)
To reinstall the drivers for this device, click Reinstall Driver.

From reading the Microchip forums and various others it appears if I somehow acquire usbser.sys and put it in C:WindowsSystem32  C:WindowsSystem32
drivers and/or in the same dir as the EBB drivers install from, I should have some luck.

I have a horrible feeling I may end up having to reinstall Windows to sort this out, not a pleasant thought in and of itself; but when I think about all the software etc that’ll have to be reinstalled and configured I get a bit of a sinking feeling…

EDIT:

Just tried the EBB on a friends XP SP3 laptop as a sanity check, it works perfectly.

Brian, forgot to say I tried your suggestions (for which Im grateful), with all the EBB drivers available.

Lead to errors as described above, sadly.