From Dilshan R Jayakody:
SpellCode is source code spell checking utility for Microsoft Windows operating systems. It can understand the source code syntax of all the major programming languages analyzes the source code intelligently and ignores all the tags, symbols, and other application specific identifiers and and check spellings of the strings and comments of the source code. SpellCode support all the major programming language syntaxes which include C/C++, Pascal, Delphi, PHP, Java, C#, Visual Basic, Ruby, Python, and TCL. SpellCode is release as an open source free software product.