Shouldn't need samples to build an install.

direct/src/directscripts/packpanda.nsi

@@ -165,7 +165,7 @@ Section "${SMDIRECTORY}" SecCore
             SetOutPath $INSTDIR\models
             File /r /x CVS "${PANDA}\models\*"
             SetOutPath $INSTDIR\samples
-            File /r /x CVS "${PSOURCE}\samples\*"
+            File /nonfatal /r /x CVS "${PSOURCE}\samples\*"
             MessageBox MB_YESNO|MB_ICONQUESTION \
                "EGG caching is about to begin.$\nThis process may take a couple minute and approximately 270 MB of RAM.$\nWARNING : It might stuck if your computer resources are low.$\n$\nDo you really want to do this optional step ?" \
                IDNO SkipCaching