diff --git a/labs/lib/wbatch/template-begin_base_bat b/labs/lib/wbatch/template-begin_base_bat
index fda2d0b5..80a09683 100644
--- a/labs/lib/wbatch/template-begin_base_bat
+++ b/labs/lib/wbatch/template-begin_base_bat
@@ -4,12 +4,25 @@ DEL /S /Q %LOGDIR%
 
 ECHO %time% Looking for %IMGDIR%\%INSTALLFILE%
 IF EXIST %IMGDIR%\%INSTALLFILE% goto got_install_iso
+
 ECHO.
 ECHO %INSTALLFILE% not found in %IMGDIR%.
 ECHO.
-ECHO To proceed, I need the install ISO from
+ECHO Trying to download the install ISO from
 ECHO %ISOURL%
 ECHO.
+ECHO Expect this to take several minutes or longer, depending on your
+ECHO Internet connection.
+ECHO.
+cscript /nologo downloader.js %ISOURL%
+RENAME downloaded.bin %INSTALLFILE%
+MOVE %INSTALLFILE% %IMGDIR%
+IF EXIST %IMGDIR%\%INSTALLFILE% goto got_install_iso
+ECHO.
+ECHO %INSTALLFILE% still not found in %IMGDIR%.
+ECHO Aborting.
+ECHO.
+
 goto :terminate
 
 :got_install_iso
diff --git a/labs/wbatch/downloader.js b/labs/wbatch/downloader.js
new file mode 100644
index 00000000..9e0bbe7b
--- /dev/null
+++ b/labs/wbatch/downloader.js
@@ -0,0 +1,12 @@
+/* Taken from http://superuser.com/a/536400 */
+/* Use: cscript /nologo downloader.js <URL> */
+
+var WinHttpReq = new ActiveXObject("WinHttp.WinHttpRequest.5.1");
+WinHttpReq.Open("GET", WScript.Arguments(0), /*async=*/false);
+WinHttpReq.Send();
+
+BinStream = new ActiveXObject("ADODB.Stream");
+BinStream.Type = 1;
+BinStream.Open();
+BinStream.Write(WinHttpReq.ResponseBody);
+BinStream.SaveToFile("downloaded.bin");