diff --git a/src/sbbs3/makevdd.bat b/src/sbbs3/makevdd.bat
new file mode 100644
index 0000000000000000000000000000000000000000..0788ba3b4128117644da746ef178937a16cf5441
--- /dev/null
+++ b/src/sbbs3/makevdd.bat
@@ -0,0 +1,2 @@
+REM Build SBBSEXEC.DLL (Synchronet Virtual UART/FOSSIL Device Driver)
+cl /Di386 /Gz /O2 ntvdm.lib netapi32.lib /DRINGBUF_SEM /DRINGBUF_MUTEX /DNO_SOCKET_SUPPORT /I../xpdev /LD sbbsexec.c ringbuf.c ../xpdev/ini_file.c ../xpdev/dirwrap.c ../xpdev/str_list.c ../xpdev/xpdatetime.c ../xpdev/genwrap.c ../xpdev/semwrap.c ../xpdev/datewrap.c ../xpdev/xpprintf.c ../xpdev/threadwrap.c