multiprocess support for windows

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Have a substantial javascript codebase with about 2,000 files
2. Run gjslint without the --undefok=multiprocess switch in a windows 
environment

What is the expected output? What do you see instead?
Expected: Performance similar to a the linux version using muliprocess
Actual: Performance is about 4 times slower than the linux flavor

What version of the product are you using? On what operating system?
Windows 7 64 bit
Python 2.7.3

Original issue reported on code.google.com by [email protected] on 20 Feb 2013 at 3:52