either use "set" from a command-prompt, or Press Win+PAUSE -> Adv. System Settings -> Environment Var. ...ALLUSERSPROFILE=C:\ProgramDataAPPDATA=C:\Users\nonspin\AppData\RoamingProgramData=C:\ProgramDataProgramFiles=C:\Program Files (x86)ProgramFiles(x86)=C:\Program Files (x86)ProgramW6432=C:\Program Files.... and so onenv.variables need to be wrapped with % type: %temp% in a command-prompt for example .. or %CommonProgramW6432% To go to your Winamp-Plugins Directory, use: %ProgramFiles(x86)%\Winamp\Plugins\ Paste the above into any WindowsExplorer // edit: The Addon-Maker has a "variables"-tab, too