Server updater problem

For some reason my hlds update tool can’t find hldsupdatetool… it says “it is not recognized as an internal or external command” it worked fine untill today… D: any ideas?

[editline]2nd July 2011[/editline]

also i can’t find hldsupdate.exe i can only find hldsupdatetoolnew.exe and another one… but for somereason its gone