Instructions: Type a text string of one or more keywords into the search field (with words separated by spaces); then click "Find", or hit "Return". If the Boolean button is set to "AND" (the default) the search will require that each word in the string be found in a file. If it is set to "OR" the search will require that at least one of the words be found, but not necessarily all. The "Case" button determines whether the case (upper or lower) of letters matters. The default is "Insensitive", for which either "cow" or "Cow" would match the search string "Cow". If instead you choose "Sensitive", the string must match the case for each letter exactly as typed, so "cow" would not match "Cow". If in doubt, make the search case insensitive.

Based on Simple Search, which was created by Matt Wright and can be found at Matt's Script Archive.