Index: win_installer/src/updater.nsi
===================================================================
diff -u -r264a81e13f9851c2f44ecfdbbf6fbb35a10a02ce -r7d1b52c2e9fb77cfbd974d6cf78ff407a7b47673
--- win_installer/src/updater.nsi	(.../updater.nsi)	(revision 264a81e13f9851c2f44ecfdbbf6fbb35a10a02ce)
+++ win_installer/src/updater.nsi	(.../updater.nsi)	(revision 7d1b52c2e9fb77cfbd974d6cf78ff407a7b47673)
@@ -227,8 +227,10 @@
                 WriteRegStr HKLM "${REG_HEAD}" "language_pack" $VERSION_INT
                 
                 DetailPrint "LAMS Language Pack ${LANGUAGE_PACK_VERSION} install successfull"
+
+                # changing the instdir back to the original inst dir
+                ReadRegStr $INSTDIR HKLM "${REG_HEAD}" "dir_inst"
                 
-                
                 Call WriteRegEntries
             
                 SetOutPath $INSTDIR
@@ -742,10 +744,12 @@
     ${StrTok} $4 "${__TIME__}" ":" 1 1
     
     strcpy $TIMESTAMP "$0$1$2-$3$4"
-    MessageBox MB_OKCANCEL|MB_ICONQUESTION "Your installation of LAMS will be backed up at $INSTDIR-$TIMESTAMP.bak" IDOK continue IDCANCEL cancel
-            cancel:
-                Abort
-            continue:
+    ${if} $IS_UPDATE == "0"
+        MessageBox MB_OKCANCEL|MB_ICONQUESTION "Your installation of LAMS will be backed up at $INSTDIR-$TIMESTAMP.bak" IDOK continue IDCANCEL cancel
+                cancel:
+                    Abort
+                continue:
+    ${endif} 
 FunctionEnd
 
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