Enabling this policy defines a semicolon-delimited list of file extensions which will be allowed to have rich attachment previews.When this policy is disabled or not configured the default settings will be set to .bmp;.emf;.gif;.jpg;.jpeg;.png;.wmf;.wrn;.txt;.err;.xml;.cpp;.c;.h;.cxx;.hxx;.idl;.cs;.vb;.idl;.xsd;.doc;.docx;.xls;.xlsx;.ppt;.pptx;.vsd;.xlsb;.xltx;.dot;.rtf
Policy path:
Windows Components\Search
Scope:
Machine
Supported on:
Microsoft Windows XP or Windows Server 2003 with Windows Search version 3.01 or later
Registry settings:
HKLM\SOFTWARE\Policies\Microsoft\Windows\Windows Search!RichAttachmentPreviews
Filename:
Search.admx