Windows application folder contains subfolders. Application current directory is in subfolder.
Some folders condain files with dll, chm, exe extensions.

Code below is used to create backup copy. It adds dll, exe and chm files also to backup.

How to exclude exe,dll,cdx,tbk files from backup file?

    loShell  = CREATEOBJECT("shell.application")
    * Backup files and subdirectories in une level up
    lcdir = FULLPATH('..\')
    
    loFolder = loShell.NameSpace(lcdir ).Items
    lcZipFile = 'c:\backups\mybackup.zip'
    
    * Create empty zip file
    STRTOFILE(CHR(80)+CHR(75)+CHR(5)+CHR(6)+REPLICATE(CHR(0), 18), lcZipFile, 0)
    loShell.NameSpace(lcZipFile).copyHere(loFolder)