nefcon's Introduction

nefcon

Windows device driver installation and management tool.

About

This little self-contained, no-dependency tool can be built either as a console application or a Windows application which has no visible window (ideal to use in combination with setup makers). It offers a command-line-based driver (un-)installer and allows for simple manipulation of class filter entries. Run nefconc.exe --help to see all the options offered.

Installation

Binaries are available to download in the releases page, just download and extract. However, if you are using a package manager, you can use one of the following options:

Scoop

nefcon is available in the Extras bucket:

scoop bucket add extras
scoop install nefcon

Winget

nefcon is available in the winget-pkgs repository:

winget install nefcon

Examples

For a console example use nefconc, for windowless execution use nefconw binary.

Installing a Primitive Driver

nefconw --install-driver --inf-path "Path\To\Inf.inf"

Uninstalling a Primitive Driver

nefconw --uninstall-driver --inf-path "Path\To\Inf.inf"

Modifying HIDClass upper filters

nefconw --add-class-filter --position upper --service-name HidHide --class-guid 745a17a0-74d3-11d0-b6fe-00a0c90f57da

Create virtual Root-enumerated device node

nefconw --create-device-node --hardware-id root\HidHide --class-name System --class-guid 4D36E97D-E325-11CE-BFC1-08002BE10318

Remove device(s) and driver

nefconw --remove-device-node --hardware-id root\HidHide --class-guid 4D36E97D-E325-11CE-BFC1-08002BE10318

Install file system volume controller driver

nefconw --inf-default-install --inf-path "F:\Downloads\btrfs-1.8\btrfs.inf"

3rd party credits

This project uses the following 3rd party resources:

nefcon's People

Contributors

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nefcon's Issues

`nefconc --help` should return success

Right now, it returns exit code 1, which it shouldn't be.

Suppress another restart dialog

The following dialog (via RestartDialogEx API) can get invoked and ruin a scripted sequence on e.g. a class filter driver installation, despite giving it "suppress all UI interaction" flags on Windows 10 (couldn't provoke this on Windows 11 so maybe MS silently fixed that):

Create equivalent of "devcon install" command

The command devcon install InfFile.inf Root\HardwareId is quite common to add a software node for a root-enumerated driver to load onto. Currently this is possible but requires at least two separate commands and the caller has to provide device class name and GUID by themselves. This information is all in the target INF and can be parsed, so something like

nefcon -i --inf-name InfName.inf --hardware-id Root\HardwareId

could be provided that shortens the call significantly. Also the --inf-name and --hardware-id could be inferred from the usage and be omitted as well. Resulting in

nefcon -i InfName.inf Root\HardwareId

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