To delete files from your Delphi application(s) you can now use the DeleteFile function, that's equivalent to the DeleteFile WinAPI function, declared inside the SysUtils unit.

Declaration
-----------

function DeleteFile(const FileName: string): Boolean;

Description
------------

The DeleteFile function erases the file named by FileName from the disk.
If the file cannot be deleted or does not exist, the function returns False.

Example
-------
if not (DeleteFile('names.tmp')) then
  Messagedlg('ERROR: Can''t delete names.tmp file !', mterror, [mbok], 0);
 

In this example the DeleteFile function will delete the file "names.tmp", if it fails a error will be displayed.
 

WARNING: The DeleteFile function will permanently delete the file and doesn't delete it too the Recycle Bin.
 

For more information read Delphi's on-line help.