Changing A File Extension

how would you rename the file extention in the first place in windows xp, i used to do it in win 98 through a command prompt but now it doesnt work in XP

you could do it via the command prompt

but easier would be to disable some of Windows explorers worst features..

• select Start | Settings | Control Panels | Folder Options
• select the View tab
• check "show hidden files and folders"
• UNcheck "hide file extensions for known file types"
• Click OK to finish

and then just rename ;)

thanks man <3