[Whistler]

and if you want to use the RB 1.0 + Realfix, you can try adding this line:
gamedll "../realbot/dll/realfix.dll"
to you addons\metamod\config.ini file. and start the HLDS without any parameters.

and the realfix.dll should NOT be appear in your plugin.ini file!

Also if you are using CS 1.5 you needn't the Realfix