In the Chameleon 2.0 MS4W package, the wmsparse configuration parameter has a
Unix value.

Should be:

    <context-param>
        <param-name>wms_parse_file</param-name>
       
<param-value>/ms4w/apps/chameleon/htdocs/common/wmsparse/win32/wmsparse.exe</param-value>
        <description>Full file path to the binary wms parser executable
('/path/to/wmsparse' on Unix, '/path/to/wmsparse.exe' on Windows).  Leave empty
to use the built in PHP parser (slower and obsolete).</description>
    </context-param>