Compiler Warning (level 4) C4639
Error MessageMSXML error, XML document comments will not be processed. reason
This warning can occur for any number of reasons.
To resolve this warning:
Reinstall MSXML by reinstalling the common language runtime.
Edit or remove the documentation comment that is causing the warning and recompile.
When C4639 is issued, all further XML comment processing is disabled, and the .xdc file is not generated.