@@ -5,9 +5,11 @@
 - **MATLAB** installed on the target machine (R2020b or later)
 - **Linux:** Xvfb (recommended for headless environments)
 
-## Install Script (Linux / macOS)
+## Install Script
 
-The easiest way to install. The script detects your OS and architecture, fetches the latest release from GitHub, and installs the binary to `~/.local/bin`:
+The easiest way to install. The script detects your OS and architecture, fetches the latest release from GitHub, and installs the binary to `~/.local/bin`.
+
+### Linux / macOS
 
 ```bash
 curl -fsSL https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.sh | sh
@@ -28,6 +30,27 @@ curl -fsSL https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/in
 
 The script uses `sudo` only if the install directory is not writable by the current user.
 
+### Windows (PowerShell)
+
+```powershell
+powershell -ExecutionPolicy ByPass -c "irm https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.ps1 | iex"
+```
+
+Customize with environment variables:
+
+```powershell
+# Install a specific version
+$env:VERSION = "0.5.1"; irm https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.ps1 | iex
+
+# Install to a custom directory
+$env:INSTALL_DIR = "C:\Tools"; irm https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.ps1 | iex
+
+# Don't modify PATH
+$env:MWI_NO_MODIFY_PATH = "1"; irm https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.ps1 | iex
+```
+
+The script automatically adds the install directory to your user-level `PATH` via the Windows registry. Restart your shell or run the printed command to pick up the change immediately.
+
 ## Download a Pre-Built Binary
 
 Pre-built binaries for Linux, macOS, and Windows are available on the [GitHub Releases](https://github.com/prabhakk-mw/matlab-proxy-go/releases) page.
 
@@ -0,0 +1,267 @@
+# Copyright 2026 The MathWorks, Inc.
+#
+# Install script for matlab-proxy on Windows.
+# Downloads the latest release binary from GitHub and installs it.
+#
+# Usage:
+#   powershell -ExecutionPolicy ByPass -c "irm https://raw.githubusercontent.com/prabhakk-mw/matlab-proxy-go/main/install.ps1 | iex"
+#
+# Options (via environment variables):
+#   VERSION                        Install a specific version (e.g. 0.5.1)
+#   INSTALL_DIR                    Install to a custom directory
+#   MWI_NO_MODIFY_PATH=1           Don't add the install directory to PATH
+
+<#
+.SYNOPSIS
+Installer for matlab-proxy.
+
+.DESCRIPTION
+This script detects your platform architecture and downloads the appropriate
+matlab-proxy binary from GitHub releases, then installs it to the first of:
+
+    $env:INSTALL_DIR (if set)
+    $env:XDG_BIN_HOME
+    $HOME\.local\bin
+
+It will then add that directory to PATH by editing the user-level
+Environment registry key.
+
+.PARAMETER NoModifyPath
+Don't add the install directory to PATH
+
+.PARAMETER Help
+Print help
+#>
+
+param (
+    [Parameter(HelpMessage = "Don't add the install directory to PATH")]
+    [switch]$NoModifyPath,
+    [Parameter(HelpMessage = "Print Help")]
+    [switch]$Help
+)
+
+$app_name = 'matlab-proxy'
+$repo = 'prabhakk-mw/matlab-proxy-go'
+
+if ($env:MWI_NO_MODIFY_PATH) {
+    $NoModifyPath = $true
+}
+
+function Install-Binary($install_args) {
+    if ($Help) {
+        Get-Help $PSCommandPath -Detailed
+        Exit
+    }
+
+    Initialize-Environment
+
+    $arch = Get-Arch
+    $version = Get-Version
+
+    $tag = "v$version"
+    $artifact = "$app_name-$tag-windows-$arch.zip"
+    $url = "https://github.com/$repo/releases/download/$tag/$artifact"
+
+    Write-Information "Installing $app_name $version (windows/$arch)..."
+    Write-Information "  From: $url"
+
+    # Download and extract
+    $tmp = New-Temp-Dir
+    $zip_path = Join-Path $tmp $artifact
+
+    try {
+        $wc = New-Object Net.WebClient
+        $proxy = Get-WebProxyFromEnvironment
+        if ($null -ne $proxy) {
+            $wc.Proxy = $proxy
+        }
+        $wc.DownloadFile($url, $zip_path)
+    } catch {
+        throw "ERROR: failed to download $url`n$_"
+    }
+
+    Expand-Archive -Path $zip_path -DestinationPath $tmp
+
+    # Determine install directory
+    $dest_dir = $null
+    if ($env:INSTALL_DIR) {
+        $dest_dir = $env:INSTALL_DIR
+    }
+    if (-not $dest_dir) {
+        $dest_dir = if ($env:XDG_BIN_HOME) { $env:XDG_BIN_HOME } else { $null }
+    }
+    if (-not $dest_dir) {
+        $dest_dir = if ($HOME) { Join-Path $HOME ".local\bin" } else { $null }
+    }
+    if (-not $dest_dir) {
+        throw "ERROR: could not determine install directory. Set INSTALL_DIR."
+    }
+
+    $dest_dir = New-Item -Force -ItemType Directory -Path $dest_dir
+    Write-Information "  To:   $dest_dir\$app_name.exe"
+
+    Copy-Item (Join-Path $tmp "$app_name.exe") -Destination $dest_dir -ErrorAction Stop
+
+    # Clean up temp directory
+    Remove-Item $tmp -Recurse -Force -ErrorAction SilentlyContinue
+
+    Write-Information ""
+    Write-Information "$app_name $version installed successfully!"
+
+    # Verify installation
+    $installed_bin = Join-Path $dest_dir "$app_name.exe"
+    & $installed_bin --version
+
+    # Update PATH
+    if (-not $NoModifyPath) {
+        Add-Ci-Path $dest_dir
+        if (Add-Path $dest_dir) {
+            Write-Information ""
+            Write-Information "To add $dest_dir to your PATH, either restart your shell or run:"
+            Write-Information ""
+            Write-Information "    set Path=$dest_dir;%Path%   (cmd)"
+            Write-Information "    `$env:Path = `"$dest_dir;`$env:Path`"   (powershell)"
+        }
+    }
+}
+
+function Get-Version() {
+    if ($env:VERSION) {
+        return $env:VERSION
+    }
+
+    Write-Information "Fetching latest release..."
+    try {
+        $release = Invoke-RestMethod -Uri "https://api.github.com/repos/$repo/releases/latest" -ErrorAction Stop
+        $tag = $release.tag_name
+        if ($tag -match '^v(.+)$') {
+            return $Matches[1]
+        }
+        throw "Unexpected tag format: $tag"
+    } catch {
+        throw "ERROR: could not determine latest version. Set VERSION manually.`n$_"
+    }
+}
+
+function Get-Arch() {
+    try {
+        # Use .NET to detect OS architecture
+        # Works correctly on PowerShell Core 7.3+ and Windows PowerShell on Win 11 22H2+
+        $a = [System.Reflection.Assembly]::LoadWithPartialName("System.Runtime.InteropServices.RuntimeInformation")
+        $t = $a.GetType("System.Runtime.InteropServices.RuntimeInformation")
+        $p = $t.GetProperty("OSArchitecture")
+        switch ($p.GetValue($null).ToString()) {
+            "X64"   { return "amd64" }
+            "Arm64" { return "arm64" }
+        }
+    } catch {
+        Write-Verbose "Could not detect architecture via RuntimeInformation: $_"
+    }
+
+    # Fallback for older .NET
+    if ([System.Environment]::Is64BitOperatingSystem) {
+        return "amd64"
+    }
+
+    throw "ERROR: unsupported architecture. Only 64-bit Windows is supported."
+}
+
+function Get-WebProxyFromEnvironment() {
+    $proxy_url = if ($env:HTTPS_PROXY) { $env:HTTPS_PROXY } else { $env:ALL_PROXY }
+    if ([string]::IsNullOrWhiteSpace($proxy_url)) {
+        return $null
+    }
+    try {
+        $uri = [System.Uri]$proxy_url
+        $proxy = New-Object System.Net.WebProxy($uri)
+        if (-not [string]::IsNullOrEmpty($uri.UserInfo)) {
+            $parts = $uri.UserInfo.Split(':')
+            $user = [System.Uri]::UnescapeDataString($parts[0])
+            $pass = if ($null -eq $parts[1]) { "" } else { [System.Uri]::UnescapeDataString($parts[1]) }
+            $proxy.Credentials = New-Object System.Net.NetworkCredential($user, $pass)
+        }
+        return $proxy
+    } catch {
+        Write-Verbose "Failed to parse proxy URL: $_"
+        return $null
+    }
+}
+
+function Initialize-Environment() {
+    if (($PSVersionTable.PSVersion.Major) -lt 5) {
+        throw @"
+Error: PowerShell 5 or later is required to install $app_name.
+Upgrade PowerShell:
+
+    https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell
+
+"@
+    }
+
+    $allowedExecutionPolicy = @('Unrestricted', 'RemoteSigned', 'Bypass')
+    if ((Get-ExecutionPolicy).ToString() -notin $allowedExecutionPolicy) {
+        throw @"
+Error: PowerShell requires an execution policy in [$($allowedExecutionPolicy -join ", ")] to run $app_name. For example, to set the execution policy to 'RemoteSigned' please run:
+
+    Set-ExecutionPolicy RemoteSigned -scope CurrentUser
+
+"@
+    }
+
+    if ([System.Enum]::GetNames([System.Net.SecurityProtocolType]) -notcontains 'Tls12') {
+        throw @"
+Error: Installing $app_name requires at least .NET Framework 4.5
+Please download and install it first:
+
+    https://www.microsoft.com/net/download
+
+"@
+    }
+}
+
+# Add to PATH in GitHub Actions
+function Add-Ci-Path($PathToAdd) {
+    if (($gh_path = $env:GITHUB_PATH)) {
+        Write-Output "$PathToAdd" | Out-File -FilePath "$gh_path" -Encoding utf8 -Append
+    }
+}
+
+# Permanently add to user-level PATH via the registry
+# Returns $true if the registry was modified, $false if already on PATH
+function Add-Path($LiteralPath) {
+    $RegistryPath = 'registry::HKEY_CURRENT_USER\Environment'
+    $CurrentDirectories = (Get-Item -LiteralPath $RegistryPath).GetValue('Path', '', 'DoNotExpandEnvironmentNames') -split ';' -ne ''
+
+    if ($LiteralPath -in $CurrentDirectories) {
+        return $false
+    }
+
+    $NewPath = (,$LiteralPath + $CurrentDirectories) -join ';'
+    Set-ItemProperty -Type ExpandString -LiteralPath $RegistryPath Path $NewPath
+
+    # Broadcast WM_SETTINGCHANGE so the shell reloads the updated PATH
+    $DummyName = 'matlab-proxy-' + [guid]::NewGuid().ToString()
+    [Environment]::SetEnvironmentVariable($DummyName, 'dummy', 'User')
+    [Environment]::SetEnvironmentVariable($DummyName, [NullString]::value, 'User')
+
+    return $true
+}
+
+function New-Temp-Dir() {
+    [CmdletBinding(SupportsShouldProcess)]
+    param()
+    $parent = [System.IO.Path]::GetTempPath()
+    [string] $name = [System.Guid]::NewGuid()
+    New-Item -ItemType Directory -Path (Join-Path $parent $name)
+}
+
+# Suppress PSScriptAnalyzer warnings for globals
+$Null = $NoModifyPath, $Help
+$InformationPreference = "Continue"
+
+try {
+    Install-Binary "$Args"
+} catch {
+    Write-Information $_
+    exit 1
+}