iso/pe: add startbat

Author: a1ive

THANKS.md

@@ -0,0 +1,15 @@
+GRUB2-filemanager would not be what it is today without the invaluable help of
+everybody who was kind enough to spend time testing it and reporting
+bugs.
+
+GRUB2-filemanager is based on the following open source projects:
+
+[a1ive's GRUB2](https://github.com/a1ive/grub)
+[GRUB4DOS](https://github.com/chenall/grub4dos)
+[memdisk](https://wiki.syslinux.org/wiki/index.php?title=MEMDISK)
+[ImDisk](http://www.ltr-data.se/opencode.html/#ImDisk)
+[Explorer++](https://github.com/derceg/explorerplusplus)
+[WinXShell](https://github.com/slorelee/PExplorer)
+[DUET from Clover](https://sourceforge.net/projects/cloverefiboot/)
+[NTBOOT](http://chenall.net/post/ntboot/)
+[winvblock](https://github.com/Sha0/winvblock)

arch/ia32/explorer.xz

@@ -3,21 +3,17 @@
 function bootpe {
   if wimtools --is64 --index=2 "${1}";
   then
-    set explorer="(install)/explorerpp64.exe";
-    set winxshell="(install)/WinXShell64.exe";
+    set sfx="(install)/sfx64.exe";
   else
-    set explorer="(install)/explorerpp32.exe";
-    set winxshell="(install)/WinXShell32.exe";
+    set sfx="(install)/sfx32.exe";
   fi;
   set lang=en_US;
   terminal_output console;
   loopback wimboot ${prefix}/wimboot.xz;
   loopback install ${prefix}/explorer.xz;
   wimboot --index=2 \
             @:bootmgfw.efi:(wimboot)/bootmgfw.efi \
-            @:explorer.exe:"${explorer}" \
-            @:WinXShell.exe:"${winxshell}" \
-            @:WinXShell.jcfg:(install)/WinXShell.jcfg \
+            @:sfx64.exe:${sfx} \
             @:winpeshl.ini:(install)/winpeshl.ini \
             @:boot.wim:"${1}";
 }