bristols, Since you are tracking Windows 2000 with different Script versions, you may want to revisit MS09-045, which designates KB971961 for Script 5.1 and 5.6, whereas KB975542 is for Script 5.7. Note that the Script 5.x installation package (scripten.exe) includes jscript.dll and vbscript.dll. Thanks to all involved in maintaining these update lists.