I am looking for a library/class that allows smart compare of two strings. At best it would give as a result percent of how two strings are alike. I am comparing company names, addresses that are recordered in different repositories, thus having many misspellings or inconsistencies in names.

Sample strings to compare: 

 "Good Company Ltd." vs. "GoodCompany" 
 "Baker Street 2" vs. "Baker Str. 2"

If I get a result in percentage of alikeness, than this can be an input for smart merge of such data.

Do you know any good libraries that would allow such smart string compare?

c# string string-comparison
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