diff --git a/packages/windows/installer/NTMakefile b/packages/windows/installer/NTMakefile
index 52fc0f24a..f54cf9866 100644
--- a/packages/windows/installer/NTMakefile
+++ b/packages/windows/installer/NTMakefile
@@ -53,7 +53,10 @@ $(OBJ)\heimdal-assemblies.wixobj: heimdal-assemblies.wxs
 		-dBinDir=$(BINDIR)	\
 		-dPlatform=$(PLATFORM)
 
-all:: $(MERGEMOD)
+$(SDKREDISTDIR)\Heimdal.msm: $(MERGEMOD)
+	$(CP) $** $@
+
+all:: $(MERGEMOD) $(SDKREDISTDIR)\Heimdal.msm
 
 clean::
 	-$(RM) $(MERGEMOD)
diff --git a/packages/windows/sdk/NTMakefile b/packages/windows/sdk/NTMakefile
index 9812ef64f..205d493dd 100644
--- a/packages/windows/sdk/NTMakefile
+++ b/packages/windows/sdk/NTMakefile
@@ -54,6 +54,9 @@ mksdkdirs:
 ! if !exist($(SDKLIBDIR))
 	$(MKDIR) $(SDKLIBDIR)
 ! endif
+! if !exist($(SDKREDISTDIR))
+	$(MKDIR) $(SDKREDISTDIR)
+! endif
 
 INCFILES=\
 	$(SDKINCDIR)\com_err.h	\
diff --git a/windows/NTMakefile.w32 b/windows/NTMakefile.w32
index 291417da5..fdcf8826e 100644
--- a/windows/NTMakefile.w32
+++ b/windows/NTMakefile.w32
@@ -86,6 +86,7 @@ SDKDIR		=$(SRC)\out
 SDKINCDIR	=$(SRC)\out\inc
 SDKLIBDIR	=$(SRC)\out\lib\$(CPU)
 SDKSRCDIR	=$(SRC)\out\src
+SDKREDISTDIR	=$(SRC)\out\redist\$(CPU)
 
 !ifdef RELDIR
 SRCDIR =$(SRC)\$(RELDIR)