These are some WSD systems available online (from reputable sources)

?generic? look for link to Structural
Semantic Interconnections (SSI),

corresponding ref
 author = {Patwardhan, Siddharth and Banerjee, Satanjeev and Pedersen, Ted},
 title = {SenseRelate::TargetWord: a generalized framework for word
sense disambiguation},
 booktitle = {ACL '05: Proceedings of the ACL 2005 on Interactive
poster and demonstration sessions},
 year = {2005},
 pages = {73--76},
 location = {Ann Arbor, Michigan},
 doi = {},
 publisher = {Association for Computational Linguistics},
 address = {Morristown, NJ, USA},