diff --git a/winmake.bat b/winmake.bat
new file mode 100644
index 0000000..451837d
--- /dev/null
+++ b/winmake.bat
@@ -0,0 +1,149 @@
+@echo off
+rem
+rem 4sports Makefile for Windows
+rem assembles source code, optionally builds a disk image
+rem
+rem a qkumba monstrosity from 2021-02-16
+rem
+
+setlocal enabledelayedexpansion
+set DISK=4sports.hdv
+set VOLUME=INSTANT.REPLAY
+
+rem third-party tools required to build (must be in path)
+rem https://sourceforge.net/projects/acme-crossass/
+set ACME=acme
+rem https://bitbucket.org/magli143/exomizer/wiki/Home
+set EXOMIZER=exomizer mem -q -P23 -lnone
+rem https://github.com/sicklittlemonkey/cadius
+rem version 1.4.0 or later
+set CADIUS=cadius
+rem https://github.com/
+set GIT=git
+
+
+if "%1" equ "asm" (
+:asm
+call :md
+call :asmlauncher
+call :asmfx
+call :asmprelaunch
+goto :EOF
+)
+
+if "%1" equ "clean" (
+:clean
+echo y|1>nul 2>nul rd build /s
+goto :EOF
+)
+
+if "%1" equ "dsk" (
+:dsk
+call :asm
+call :compress
+2>nul del build\log
+1>nul copy /y res\blank.hdv "build\%DISK%" >>build\log
+1>nul copy /y res\_FileInformation.txt build\ >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "build\LAUNCHER.SYSTEM" >>build\log
+1>nul copy /y res\PREFS.CONF build\ >>build\log
+cscript /nologo bin\padto.js 512 build\PREFS.CONF
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\TITLE" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\COVER" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\HELP" >>build\log
+for %%q in (res\*.CONF) do if "%%q" neq "res\PREFS.CONF" %CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "%%q" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "build\PREFS.CONF" >>build\log
+cscript /nologo bin\rsync.js "res\CREDITS" "build\" >>build\log
+cscript /nologo bin\dumpcr.js "build\CREDITS"
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "build\CREDITS" >>build\log
+cscript /nologo bin\rsync.js "res\HELPTEXT" "build\" >>build\log
+cscript /nologo bin\dumpcr.js "build\HELPTEXT"
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "build\HELPTEXT" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\DECRUNCH" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\JOYSTICK" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\Finder.Data" >>build\log
+%CADIUS% ADDFILE "build\%DISK%" "/%VOLUME%/" "res\Finder.Root" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/TITLE.HGR" "res\TITLE.HGR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/TITLE.DHGR" "res\TITLE.DHGR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ACTION.HGR" "res\ACTION.HGR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ACTION.DHGR" "res\ACTION.DHGR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ACTION.GR" "res\ACTION.GR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ARTWORK.SHR" "res\ARTWORK.SHR" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ATTRACT" "res\ATTRACT" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/SS" "res\SS" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/ICONS" "res\ICONS" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/DEMO" "res\DEMO" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/FX" "build\FX" >>build\log
+%CADIUS% CREATEFOLDER "build\%DISK%" "/%VOLUME%/X/" >>build\log
+for %%q in (res\dsk\*.po) do %CADIUS% EXTRACTVOLUME "%%q" build\X\ >>build\log
+1>nul 2>nul del /s build\X\.DS_Store build\X\PRODOS build\X\LOADER.SYSTEM
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/X" "build\X" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/PRELAUNCH" "build\PRELAUNCH" >>build\log
+cscript /nologo bin\rsync.js "res\GAMEHELP\*" "build\GAMEHELP" >>build\log
+for %%q in (res\title.hgr\*) do if not exist build\GAMEHELP\%%~nxq 1>nul copy build\GAMEHELP\STANDARD build\GAMEHELP\%%~nxq
+for %%q in (res\title.dhgr\*) do if not exist build\GAMEHELP\%%~nxq 1>nul copy build\GAMEHELP\STANDARD build\GAMEHELP\%%~nxq
+1>nul 2>nul del /s build\GAMEHELP\STANDARD
+cscript /nologo bin\dumpcr.js "build\GAMEHELP\*"
+cscript /nologo bin\buildfileinfo.js build\GAMEHELP "06" "6000" >>build\log
+%CADIUS% ADDFOLDER "build\%DISK%" "/%VOLUME%/GAMEHELP" "build\GAMEHELP" >>build\log
+cscript /nologo bin\changebootloader.js "build\%DISK%" res\proboothd
+goto :EOF
+)
+
+if "%1" equ "chd" (
+call :dsk
+chdman createhd -c none -i "build\%DISK%" -o "build\%DISK%.chd" >>build\log
+goto :EOF
+)
+
+echo usage: %0 clean / asm / dsk / chd
+goto :EOF
+
+:md
+2>nul md build
+2>nul md build\po
+2>nul md build\X
+2>nul md build\FX
+2>nul md build\PRELAUNCH
+2>nul md build\GAMEHELP
+goto :EOF
+
+:asmlauncher
+1>build\buildnum.log git rev-list --count HEAD
+for /f "tokens=*" %%q in (build\buildnum.log) do set _build=%%q
+2>build\relbase.log %ACME% -DBUILDNUMBER=%_build% src\4sports.a
+for /f "tokens=*" %%q in (build\relbase.log) do set _make=%%q
+%ACME% -DBUILDNUMBER=%_build% -DRELBASE=$!_make:~-5,4! -r build\4sports.lst src\4sports.a
+goto :EOF
+
+:asmfx
+for %%q in (src\fx\*.a) do (
+  for /f "tokens=* usebackq" %%k in (`find "^!to" %%q`) do set _to=%%k
+  set _to=!_to:~0,1!
+  if !_to!==t %ACME% %%q
+)
+cscript /nologo bin\buildfileinfo.js build\FX "06" "6000"
+goto :EOF
+
+:asmprelaunch
+for %%q in (src\prelaunch\*.a) do (
+  for /f "tokens=* usebackq" %%k in (`find "^!to" %%q`) do set _to=%%k
+  set _to=!_to:~0,1!
+  if !_to!==t %ACME% %%q
+for %%q in (res\title.hgr\*) do if not exist build\PRELAUNCH\%%~nxq 1>nul copy build\PRELAUNCH\STANDARD build\PRELAUNCH\%%~nxq
+for %%q in (res\title.dhgr\*) do if not exist build\PRELAUNCH\%%~nxq 1>nul copy build\PRELAUNCH\STANDARD build\PRELAUNCH\%%~nxq
+)
+cscript /nologo bin\buildfileinfo.js build\PRELAUNCH "06" "0106" >>build\log
+goto :EOF
+
+:compress
+for %%q in (res\action.dhgr.uncompressed\*) do if not exist res\action.dhgr\%%~nxq %EXOMIZER% res\action.dhgr.uncompressed\%%~nxq@0x4000 -o res\action.hgr\%%~nxq
+for %%q in (res\action.hgr.uncompressed\*) do if not exist res\action.hgr\%%~nxq %EXOMIZER% res\action.hgr.uncompressed\%%~nxq@0x4000 -o res\action.hgr\%%~nxq
+for %%q in (res\artwork.shr.uncompressed\*) do if not exist res\artwork.shr\%%~nxq %EXOMIZER% res\artwork.shr.uncompressed\%%~nxq@0x2000 -o res\artwork.shr\%%~nxq
+cscript /nologo bin\buildfileinfo.js res\TITLE.HGR "06" "4000"
+cscript /nologo bin\buildfileinfo.js res\TITLE.DHGR "06" "4000"
+cscript /nologo bin\buildfileinfo.js res\ACTION.HGR "06" "3FF8"
+cscript /nologo bin\buildfileinfo.js res\ACTION.DHGR "06" "3FF8"
+cscript /nologo bin\buildfileinfo.js res\ACTION.GR "06" "6000"
+cscript /nologo bin\buildfileinfo.js res\ARTWORK.SHR "06" "1FF8"
+cscript /nologo bin\buildfileinfo.js res\ATTRACT "04" "8000"
+cscript /nologo bin\buildfileinfo.js res\SS "04" "4000"