Trouble using the hldsupdate tool

[PO'd]

Whenever I try to update it for CS:S using this command

hldsupdatetool -command update -game "Counter-Strike Source" username- duncanfisher52 -password (withheld)

It updates HALF-LIFE, instead of fugging CS:S! WHY WONT THIS THING WORK RIGHT?!

[cryotek]

It looks like you have an instance of hlds installed, remove the InstallRegistry.blob and try it again.