XYplorer Beta Club

13.80.0134 (latest beta), assuming you already have a 'new column':

right click the new column header, pick the last entry, 'configure custom columns...';

select an '(undefined)' item in the list, click the 'edit' button;

on 'type', select 'script' - pay attention to the 'item filter' and 'item type' options, defining target extensions for the former;

place your script as described in http://www.xyplorer.com/xyfc/viewtopic.php?f=3&t=11321 , which contains some working sample scripts.
-please not the importance of 'return', there!

I guess that's all.

i put this script and it seems to copy all list items (temporary internet files) to desktop so i canceled the custom column..thanks for the answer

The script will be executed on rebuild of list (i.e. on tab or folder change) for each item!!
Scripts in custom columns are meant to generate a result that should be displayed in the column.
For this to be made possible there is special scripting command/keyword "return", as also shown in SkyFrontier's link.
Scripts with file operations probably make no sense in this context.
See also: http://www.xyplorer.com/xyfc/viewtopic. ... 95#p100913

thanks for the clarification