Archiving tasks that are enabled for custom filtering validate ruleset XML against the schema, ruleset schema.xdr, when they start archiving items. If any of the XML is invalid, the tasks stop and you must correct any errors before restarting them.
To avoid disrupting tasks because of syntactic errors, it is a good idea to validate your XML file before it is accessed by the tasks. You could use a third party tool, such as the graphical XML Editor in Liquid XML Studio:
http://www.liquid-technologies.com/XmlStudio/Free-Xml-Editor.aspx
When using the tool, specify the namespace as:
x-schema:ruleset schema.xdr
The schema file,
ruleset schema.xdr, is shipped in the
Custom Filter Rules
folder . The
schema must be referenced at the start of any ruleset files as
follows:
<?xml version="1.0"?> <RULE_SET xmlns="x-schema:ruleset schema.xdr">
If the file contains non-ANSI characters, ensure the correct encoding is set on the first line and save the file using the appropriate encoding.