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I have a fileshare with several thousands .config files (xml files) - and several thousands of other files. I added the .config files to the allowed file-types and restarted search.

Apparently the search crawler (SP2013) parses the content and discovers that they are application/xml - thats why I can't search for tag names, eg. <settings> because only xml values are indexed.

I tried to override the xml mimetype with

New-SPEnterpriseSearchFileFormat -SearchApplication $ssa config "Config" text/plain

But that does not change my result...

Any ideas?

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Have you looked at adding an XML iFilter? Depending on the coding you could index the values and would be a crawled property.

The other alternative would be to write a Content Processing Callout. Register the callout trigger for FileExtension="config" and you can perform the processing yourself.

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  • I read that you cant "overwrite" ifilters - there is a xml ifilter out of the box. Feb 8 '14 at 20:05
  • The CPC is too slow for 100-500k files. Feb 8 '14 at 20:07
  • You can't overwrite the Document Handlers, but I think you can change the registration for iFilters. I haven't tried yet. Do you want crawled properties of just free text? Feb 9 '14 at 13:55
  • Free text would be great. Regarding overwrite: technet.microsoft.com/en-us/library/jj219577.aspx it states "You can extend the initial collection of file formats that SharePoint 2013 can parse by adding third-party filter-based format handlers, known as iFilters. You cannot override a built-in format handler by installing a third-party iFilter." Feb 9 '14 at 19:33
  • Any clues for the free text part? Feb 12 '14 at 10:43

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