"50 Error - missing XML parser (MSXML6)" is displayed for XML Extensions
The XML parser could not be found. This error occurs only on Windows and indicates the MSXML 6.0 parser is not installed in
the Windows system. The MSXML 6.0 parser is normally installed on most Windows systems, but could not be found on this system.
MSXML 6.0 can be obtained by downloading it from Microsoft's web site.