Characters that represent one or more characters in a filename. The Windows wildcard characters are the question mark (?) and the asterisk (*). The question mark matches any single character; the asterisk matches any combination of characters. For example, if a directory contains files with the names BAT, B12, BOAT, and CAT, the pattern b\* matches the names BAT, B12, and BOAT. The pattern b?t matches only the name BAT.