IPChanger — Network Configuration Tool

A small Windows Forms GUI that lets members of the Network Configuration Operators group change IPv4 settings (IP address, subnet/CIDR, gateway, DNS) on a selected physical network adapter, or switch the adapter back to DHCP.

What it does

• Lists all physical adapters (connected or not), excluding Wi-Fi, WWAN/cellular, and Hyper-V/VMware vEthernet switches.
• Validates IP address, subnet mask, and gateway input.
• Reads the currently selected adapter's settings into the form.
• Applies a static configuration, or enables DHCP.
• Gated to members of the Network Configuration Operators group.
• Self-elevating: launches, prompts for UAC, and runs elevated. (This replaces the old separate Launch-NetworkConfig launcher — it's now one app.)

Requirements

• Windows 10/11, PowerShell 5.1+
• Membership in the local Network Configuration Operators group
• Administrative elevation (the app requests it via UAC)
• To build: the ps2exe module
• To sign: a code-signing certificate in Cert:\CurrentUser\My (or LocalMachine\My)

Project layout

File	Purpose
Set-NetworkConfig.ps1	The app: self-elevation + the WinForms GUI and all network logic.
SetNet-Install.ps1	Install/uninstall script. Copies the exe to C:\Program Files\IPChanger and creates Desktop + Start Menu shortcuts.
build.ps1	Compiles Set-NetworkConfig.ps1 to an exe with ps2exe, embeds the icon, and (optionally) signs the exe + installer.
Make-Icon.ps1	Generates IPChanger.ico (re-run to tweak the icon design).
IPChanger.ico	App icon embedded into the exe; the installer's shortcuts inherit it.
VERSION	Single source of truth for the app version (auto-bumped by the git pre-commit hook).
hooks/pre-commit	Git hook that increments VERSION on each commit. Install with cp hooks/pre-commit .git/hooks/.

See STATUS.md for current state and next steps (a handoff briefing).

The compiled .exe is a build artifact and is not committed (see .gitignore).

Build

# Compile only
.\build.ps1

# Compile and sign the exe + installer (uses newest code-signing cert in your store)
.\build.ps1 -Sign

# Sign with a specific certificate and set the version
.\build.ps1 -Sign -CertThumbprint <THUMBPRINT> -Version 4.0.1.0

Output: IPChanger.exe next to the script (compiled from Set-NetworkConfig.ps1).

Install / uninstall

Ship IPChanger.exe and SetNet-Install.ps1 together, then run:

powershell.exe -ExecutionPolicy Bypass -File .\SetNet-Install.ps1 -Action Install
powershell.exe -ExecutionPolicy Bypass -File .\SetNet-Install.ps1 -Action Uninstall

• Installs to: C:\Program Files\IPChanger
• Shortcuts: Public Desktop and All-Users Start Menu, named Network Configuration Tool (using the exe's embedded icon)
• Logs: C:\ProgramData\IPChanger\Logs
• On install/uninstall, removes leftovers from older versions (C:\Distrib\*.exe, the Apps\NetCfg folder, and old Desktop / Start Menu shortcuts). C:\Distrib and its \logs are left untouched.

Versioning

The version lives in VERSION (e.g. 4.0.2). The git pre-commit hook bumps the patch number on every commit, build.ps1 stamps it into the exe, and the app displays it in the bottom-right corner of the window — so you can always confirm which build you're running. On a fresh clone, install the hook once: cp hooks/pre-commit .git/hooks/pre-commit.

License

MIT © 2026 Biggoan1