diff --git a/bin/changebootloader.js b/bin/changebootloader.js
new file mode 100644
index 0000000..7875c2e
--- /dev/null
+++ b/bin/changebootloader.js
@@ -0,0 +1,7 @@
+a = new ActiveXObject("scripting.filesystemobject")
+b = a.opentextfile(WScript.Arguments(0))
+c = b.read(0x40)
+b.skip(0x200)
+d = b.read(a.getfile(WScript.Arguments(0)).size-0x240)
+b.close()
+b=a.createtextfile(WScript.Arguments(0), 1).write(c+a.opentextfile(WScript.Arguments(1)).read(512)+d)
diff --git a/bin/po2do.js b/bin/po2do.js
new file mode 100644
index 0000000..8474c6f
--- /dev/null
+++ b/bin/po2do.js
@@ -0,0 +1,39 @@
+kMap = [0x00,
+        0x0E,
+        0x0D,
+        0x0C,
+        0x0B,
+        0x0A,
+        0x09,
+        0x08,
+        0x07,
+        0x06,
+        0x05,
+        0x04,
+        0x03,
+        0x02,
+        0x01,
+        0x0F
+       ]
+
+a = new ActiveXObject("scripting.filesystemobject")
+for (b = new Enumerator(a.GetFolder(WScript.Arguments(0)).files); !b.atEnd(); b.moveNext())
+{
+    if (a.GetExtensionName(b.item()).toLowerCase() == "po")
+    {
+        fi = a.opentextfile(b.item())
+        fo = a.createtextfile(WScript.Arguments(1)+"\\"+a.GetBaseName(b.item())+".dsk", 1)
+        for (track = 0; track < 0x23; ++track)
+        {
+            sectors = new Array(0x10)
+            for (dos_sector = 0; dos_sector < 0x10; ++dos_sector)
+            {
+                sectors[kMap[dos_sector]] = fi.read(256)
+            }
+            for (dos_sector = 0; dos_sector < 0x10; ++dos_sector)
+            {
+                fo.write(sectors[dos_sector])
+            }
+        }
+    }
+}
diff --git a/winmake.bat b/winmake.bat
new file mode 100644
index 0000000..d46c18c
--- /dev/null
+++ b/winmake.bat
@@ -0,0 +1,40 @@
+@echo off
+rem
+rem Anti-M Makefile for Windows
+rem assembles source code, optionally builds a disk image
+rem
+rem a qkumba monstrosity from 2019-04-11
+rem
+
+set BUILDDISK=build\anti-m
+set VOLUME=ANTI.M
+
+rem third-party tools required to build (must be in path)
+rem https://sourceforge.net/projects/acme-crossass/
+set ACME=acme
+rem https://www.brutaldeluxe.fr/products/crossdevtools/cadius/
+rem https://github.com/mach-kernel/cadius
+set CADIUS=cadius
+
+if "%1" equ "asm" (
+:asm
+2>nul md build
+
+%ACME% -r build\anti-m.lst src\anti-m.a
+1>nul copy /y res\work.bin "%BUILDDISK%.po"
+1>nul copy /y res\_FileInformation.txt build\ >>build\log
+%CADIUS% ADDFILE "%BUILDDISK%.po" "/%VOLUME%/" "build\ANTI.M.SYSTEM" >>build\log
+%ACME% -r build\proboot.lst src\proboot.a
+cscript /nologo bin/changebootloader.js "%BUILDDISK%.po" build\proboot
+cscript /nologo bin/po2do.js build\ build\
+2>nul del "%BUILDDISK%.po"
+goto :EOF
+)
+
+if "%1" equ "clean" (
+:clean
+echo y|1>nul 2>nul rd build /s
+goto :EOF
+)
+
+echo usage: %0 clean / asm