Cdd is a directory changer you may find handy when working with drag/drop.

The command
    cdd path
changes to the drive and directory specified by path (Dos cd does not
handle drive changes).  If path is a file name, cdd will change to
the directory containing the file.   For example,
    cdd d:\test\myfile.txt
changes to drive d:, directory test (assuming myfile.txt is a file).

You can use cdd to quickly virus check the contents of zipped files.

First, unzip files from File Manager, eg by putting the zip in a temporary
directory and then double clicking on it.  (Associate .zip with
a pif which runs pkunzip.exe in a window).  Then  drag/drop any file
from the unzipped package onto a button which you have configured to run
a virus scanner as follows.

Create a pif file containing the command c:\ut\b\checkvir.bat.
The batch file checkvir.bat contains these commands:

cdd %1
c:\f-prot\f-prot *.*

Assign this pif file to a Stiletto button.  Now drag/drop any file
from the zipped package onto the button, and the virus checker -- f-prot
-- gets run on the directory containing the file.

The files cdd.exe and cdd.txt are in the public domain.