hey ive just recently done that myself, u can do it via reg file.. using mytheme.icl,iconindex Example: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer] "MyIcon"="C:\Windows\Icons\Mytheme.icl,10" Note: This path isnt a valid path for an icon, i just used it as an example providing your icon theme is called "MyTheme.icl" easiest way is 2 record the changes with a registry program like regsnap save it as a reg file, or u can replace the icons in the following files instead ( ive opted 2 do it this way cuz i dont like the default icons at all) Shell32.dll Explorer.exe MyDocs.dll are the files that hold the icons u need 2 change regards, hope this helps