Index: /trunk/doc/manual/Makefile.kmk
===================================================================
--- /trunk/doc/manual/Makefile.kmk	(revision 42243)
+++ /trunk/doc/manual/Makefile.kmk	(revision 42244)
@@ -240,6 +240,15 @@
  PDFLATEX_INTERACTION ?= batchmode
 ifeq ($(KBUILD_HOST),win)
- # tell MiKTeX to automatically download packages
- PDFLATEX             = pdflatex -halt-on-error -interaction $(PDFLATEX_INTERACTION) --enable-installer
+ ifndef VBOX_PDFLATEX
+  VBOX_PDFLATEX      := $(firstword $(rsort $(wildcard $(PATH_DEVTOOLS)/win.x86/miktex-portable/*/miktex/bin/pdflatex.exe)))
+  ifneq ($(VBOX_PDFLATEX),)
+   PDFLATEX           = $(VBOX_PDFLATEX) -halt-on-error -interaction $(PDFLATEX_INTERACTION)
+  endif
+ endif
+ ifndef PDFLATEX
+  # Tell MiKTeX to automatically download packages if system wide install.
+  VBOX_PDFLATEX      := pdflatex
+  PDFLATEX            = $(VBOX_PDFLATEX) -halt-on-error -interaction $(PDFLATEX_INTERACTION) --enable-installer
+ endif
 else
  PDFLATEX_HALT        = $(shell \