diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -405,6 +405,7 @@
               ("ErrorDialog", "ErrorDlg"),
               ("Progress1", "Install"),   # modified in maintenance type dlg
               ("Progress2", "installs"),
+              ("NewsShown", "0"),
               ("MaintenanceForm_Action", "Repair")])
 
     # Fonts, see "TextStyle Table"
@@ -626,7 +627,8 @@
     c.event("SpawnDialog", "ExistingDirectoryDlg", 'TargetExists=1 and REMOVEOLDVERSION="" and REMOVEOLDSNAPSHOT=""', 2)
     c.event("SetTargetPath", "TARGETDIR", 'TargetExists=0 or REMOVEOLDVERSION<>"" or REMOVEOLDSNAPSHOT<>""', 3)
     c.event("SpawnWaitDialog", "WaitForCostingDlg", "CostingComplete=1", 4)
-    c.event("NewDialog", "SelectFeaturesDlg", 'TargetExists=0 or REMOVEOLDVERSION<>"" or REMOVEOLDSNAPSHOT<>""', 5)
+    c.event("SpawnDialog", "PathInfoDlg", "NewsShown=0", 5) # Show this once no matter what.
+    c.event("NewDialog", "SelectFeaturesDlg", 'TargetExists=0 or REMOVEOLDVERSION<>"" or REMOVEOLDSNAPSHOT<>""', 6)
 
     c = seldlg.cancel("Cancel", "DirectoryCombo")
     c.event("SpawnDialog", "CancelDlg")
@@ -641,6 +643,29 @@
     c = seldlg.pushbutton("NewDir", 324, 70, 30, 18, 3, "New", None)
     c.event("DirectoryListNew", "0")
 
+
+    #####################################################################
+    # PathInfoDlg
+    path_dialog = PyDialog(db, "PathInfoDlg", x, y, w, h, modal, title,
+                           "Ok", "Ok", "Ok")
+    path_dialog.title("New for Python 3.3")
+    path_dialog.text("News", 135, 85, 240, 130, 0x30003,
+        "New in 3.3 is the ability to add [TARGETDIR] to\n"
+        "your system's Path variable. This option allows you\n"
+        "to type `python` at a command prompt without\n"
+        "requiring anything else on your part.\n\n"
+        "However, users of multiple versions need to be\n"
+        "aware that this will overrule the behavior of any\n"
+        "existing Python installations that you have placed\n"
+        "on the Path.\n\n"
+        "If you choose to enable this feature, it will be\n"
+        "applied after you logout."
+        )
+
+    c = path_dialog.cancel("Ok", "Ok", name="Ok")
+    c.event("[NewsShown]", "1", order=1)
+    c.event("EndDialog", "Return", order=2)
+
     #####################################################################
     # SelectFeaturesDlg
     features = PyDialog(db, "SelectFeaturesDlg", x, y, w, h, modal|track_disk_space,