Xceed Zip supports the * and ? wildcard characters. The * character matches a sequence of 0 or more characters. The ? character matches exactly one character.

Do not use "*.*" to match all files - you must use "*" instead. In the 32-bit Windows world, using *.* will only match files that contain a "." in them!

Use the ProcessSubfolders property to determine whether or not the contents of encountered sub-directories are also processed.

Wildcard matching is not case sensitive.