Deprecated functionality is used
This is a warning message emitted when some deprecated config file commands are used. The actual message that accompanies this error code tells the details. Note that while the statement is deprecated, it continues to work. However, it may no longer work in later versions, so it generally is a good idea to replace it with it's newer equivalent.
Examples in v7 are the discard action (~ indicator), which has been replaced by the (better) alternative "stop" statement as well as omruleset, which has been replaced by the (much better) "call" statement.
This is a repository of known Windows Events, hopefully together with a description of what it means, when it appears and how to troubleshoot it. The event repository was initially provided as a tool for parser creation but has since evolved. It is now part of the overall knowledgebase in the hope that it provides a useful service to the community. Please add your comments and questions (which we try to answer), as this increases the event repository usefulness for all of us.