set regexp = createObject("vbscript.regexp")

Execute method
                                         Executes a regular expression search against a specified pattern. Returns a collection of all the matches.
  Replace method
                                         Replaces text found in a regular expression search.
  Test method
                                         Executes a regular expression search against a specified pattern. Returns a Boolean value specifying whether a match occurred.
  Global property
                                         Specifies whether the pattern applies to all matches found or only to the first match found.
  IgnoreCase property
                                         Specifies whether a pattern search is case insensitive or case sensitive.
  Pattern property
                                         Sets or returns the current pattern.