diff --git a/.gitignore b/.gitignore
index e075b714c5a..1148a80b950 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@
 *.exe
 .*.swp
 .haxelib
+/opam
 /out
 /installer
 
diff --git a/WinSetup.ps1 b/WinSetup.ps1
new file mode 100644
index 00000000000..fa8e1252b73
--- /dev/null
+++ b/WinSetup.ps1
@@ -0,0 +1,90 @@
+function Cmd-Path($file) {
+	try { Split-Path -Parent (Get-Command "$file.exe" -ErrorAction Stop).Source } catch { "" }
+}
+
+# resolve Opam binary and repo
+# you can choose when opam is installed by setting OPAM_INSTALL_DIR (and OPAMROOT - optional)
+
+$Opam = Cmd-Path "opam"
+$OpamRepo = $env:OPAMROOT
+$Git = Cmd-Path "git"
+
+if( !$Opam ) { $Opam = $env:OPAM_INSTALL_DIR }
+if( !$Opam ) { $Opam = (Get-Item .).FullName + "\opam" }
+if( !$OpamRepo ) { $OpamRepo = "$Opam\repo" }
+
+$CygRoot = "$OpamRepo\.cygwin\root"
+$WinSysPath = "$env:SystemRoot\System32"
+$Neko = Cmd-Path "neko"
+$RegPath = "HKCU:\Environment"
+$MbedVer = "2.16.3"
+$MbedTLS = "https://github.com/Simn/mingw64-mbedtls/releases/download/$MbedVer/mingw64-x86_64-mbedtls-$MbedVer-1.tar.xz"
+
+function Install-Init {
+
+	if( !$Git ) {
+		echo "**ERROR** git.exe could not be found in PATH"
+		Exit
+	}
+
+	if( !$Neko ) {
+		echo "**ERROR** Neko.exe could not be found in PATH"
+		Exit
+	}
+	
+	# reset PATH to prevent conflicting cygwin or existing install
+	Set-Item -Path env:PATH -Value "$Neko;$CygRoot\usr\x86_64-w64-mingw32\bin;$Opam;$CygRoot\bin;$WinSysPath"
+
+	# set OPAM root dir
+	Set-Item -Path env:OPAMROOT -Value "$OpamRepo"
+}
+
+function Install-Opam {
+	# download opam binary
+	Invoke-Expression "& { $(Invoke-RestMethod https://opam.ocaml.org/install.ps1)} -OpamBinDir $Opam"
+
+	# init opam, assume that we have windows GIT installed
+	Invoke-Expression "opam init --cygwin-internal-install --no-git-location --shell=powershell --shell-setup"
+}
+
+function Install-Haxe-Deps {
+	Invoke-Expression "opam install . --deps-only --confirm-level=yes"	
+	
+	# install mbedtls mingw package
+	$tmpFile = "./mbed.tgz"
+	Invoke-Expression "curl $MbedTLS -o $tmpFile"
+	Invoke-Expression "tar -C / -xvf $tmpFile"
+	Remove-Item "$tmpFile"
+	
+	# install lsp server
+	Invoke-Expression "opam install ocaml-lsp-server --confirm-level=yes"	
+}
+
+function Add-Path($NewPath) {
+	$CurrentPath = (Get-ItemProperty -Path $RegPath -Name Path).Path
+	if ($CurrentPath -notlike "*$NewPath*") {
+		$CurrentPath = "$NewPath;$CurrentPath"
+		Set-ItemProperty -Path $RegPath -Name Path -Value $CurrentPath
+	}
+}
+
+function Setup-Paths {
+	Add-Path "$OpamRepo\default\bin"
+	Add-Path "$CygRoot\bin"
+	Add-Path "$CygRoot\usr\x86_64-w64-mingw32\bin"
+	Add-Path "$CygRoot\usr\x86_64-w64-mingw32\sys-root\mingw\bin"
+	Set-ItemProperty -Path $RegPath -Name OPAMROOT -Value $OpamRepo
+
+	# refresh for all processes (no need to restart)
+	$signature = @"
+[DllImport("user32.dll", CharSet = CharSet.Auto)]
+public static extern int SendMessageTimeout(IntPtr hWnd, int Msg, IntPtr wParam, string lParam, int fuFlags, int uTimeout, out IntPtr lpdwResult);
+"@
+	$SendMessageTimeout = Add-Type -MemberDefinition $signature -Name "Win32SendMessageTimeout" -Namespace Win32Functions -PassThru
+	$SendMessageTimeout::SendMessageTimeout([IntPtr]0xFFFF, 0x1A, [IntPtr]::Zero, "Environment", 2, 5000, [ref][IntPtr]::Zero)
+}
+
+Install-Init
+#Install-Opam
+Install-Haxe-Deps
+#Setup-Paths
diff --git a/haxe.opam b/haxe.opam
index 61568c6c88d..21273a17873 100644
--- a/haxe.opam
+++ b/haxe.opam
@@ -21,7 +21,7 @@ remove: [make "uninstall" "INSTALL_DIR=%{prefix}%"]
 depends: [
   "ocaml"
   "ocamlfind" {build}
-  "dune" {>= "1.11" & < "3.16"}
+  "dune" {>= "3.17"}
   "sedlex" {>= "2.0"}
   "xml-light"
   "extlib" {>= "1.7.8"}