Index: /trunk/src/VBox/Installer/win/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Installer/win/Makefile.kmk	(revision 79705)
+++ /trunk/src/VBox/Installer/win/Makefile.kmk	(revision 79706)
@@ -1105,4 +1105,7 @@
 
 $$(RePackScripts_0_OUTDIR)/sign-ev.cmd: | $$(dir $$@)
+	# The %~dp1\\ oddity is working around otherwise ending with \" during
+	# expansion of the CCS command line which for a reason I cannot immediately
+	# understand appends a " to the path.
 	$(APPEND) -nt "$@" \
 		'if ".%KBUILD_DEVTOOLS%" == "." (echo KBUILD_DEVTOOLS is not set & exit /b 1)' \
@@ -1110,5 +1113,5 @@
 		'if ".%1" == "." (echo No .cab file specified & exit /b 1)' \
 		$(subst $(KBUILD_BIN_PATH),%KBUILD_BIN_PATH%,$(subst $(KBUILD_DEVTOOLS),%KBUILD_DEVTOOLS%, \
-		'( $(call VBOX_SIGN_EV_FILE_FN,%1,%~dp1) ) || exit /b1' \
+		'( $(call VBOX_SIGN_EV_FILE_FN,%1,%~dp1\\) ) || exit /b1' \
 		) )