Suppose we have the following files on a given drive mapped to H:

H:\

----------DATA\

--------------------BACKUPS\

------------------------------DOCS\  

----------------------------------------DOC1.DOC

----------------------------------------DOC2.DOC

----------------------------------------DOC3.PDF

----------------------------------------DOC4.TXT

------------------------------PICS\

----------------------------------------PIC1.BMP

----------------------------------------PIC2.BMP

----------------------------------------PIC3.GIF

----------------------------------------PIC4.JPEG

------------------------------JUNK\

----------------------------------------ERASE.ME

ROOT.TXT 

To zip all files on drive H:\, and all subfolders, set FilesToProcess to: 

XceedZip1.FilesToProcess = "H:\*" 

To zip all ".TXT" files on drive H:\, and all subfolders, set FilesToProcess to: 

XceedZip1.FilesToProcess = "H:\*.TXT" 

To zip all files in the H:\DATA folder, and all subfolders, set FilesToProcess to: 

XceedZip1.FilesToProcess = "H:\DATA\*" 

To zip all files in the H:\DATA folder, but not in its subfolders (like H:\DATA\BACKUPS, H:\DATA\BACKUPS\DOCS and H:\DATA\BACKUPS\PICS), set ProcessSubfolders and FilesToProcess to: 

XceedZip1.ProcessSubfolders = FALSE

XceedZip1.FilesToProcess = "H:\DATA\*"

 Keep in mind that with the help of the FilesToExclude property, you can perform more complex wildcard processing. Check out the example for FilesToExclude.