dureg /a
Size of HKEY_CLASSES_ROOT : 4139400
Size of HKEY_USERS : 557562
Size of HKEY_LOCAL_MACHINE : 8407113
Total Registry data size: 13104075
To display all occurances of "Content Type" only in HKEY_CLASSES_ROOT.
dureg /s /lm "Content Type"
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/cdf\Extension : .cdf
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/fractals\Extension : .fif
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/hta\CLSID : {3050f4d8-98B5-11CF-BB82-00AA00BDCE0B}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/hta\Extension : .hta
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/mac-binhex40\Extension : .hqx
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/postscript\Extension : .ps
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/set-payment-initiation\Extension : .setpay
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/set-registration-initiation\Extension : .setreg
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-cdf\Extension : .cdf
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-compress\Extension : .z
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-compressed\Extension : .tgz
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-gzip\Extension : .gz
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-internet-signup\Extension : .ins
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-iphone\Extension : .iii
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-latex\Extension : .latex
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-mix-transfer\Extension : .nix
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-mix-transfer\CLSID : {10000000-0000-0000-0000-000000000001}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-mplayer2\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-mplayer2\Extension : .asx
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-stuffit\Extension : .sit
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-tar\Extension : .tar
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-troff-man\Extension : .man
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-x509-ca-cert\Extension : .crt
HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-zip-compressed\Extension : .zip
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/aiff\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/aiff\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/aiff\Extension : .aiff
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/basic\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/basic\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/basic\Extension : .au
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/mid\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/mid\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/mid\Extension : .mid
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/midi\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/midi\Extension : .mid
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/mpeg\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/mpeg\Extension : .mp3
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/wav\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/wav\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/wav\Extension : .wav
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-aiff\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-aiff\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-aiff\Extension : .aiff
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-midi\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-midi\Extension : .mid
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-mpegurl\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-mpegurl\Extension : .m3u
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-pn-realaudio\Extension : .ra
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-wav\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-wav\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\audio/x-wav\Extension : .wav
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/bmp\Extension : .bmp
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/bmp\Image Filter CLSID : {607fd4e8-0a03-11d1-ab1d-00c04fc9b304}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/bmp\Bits\0 : 2
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/gif\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/gif\Extension : .gif
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/gif\Image Filter CLSID : {607fd4e8-0a03-11d1-ab1d-00c04fc9b304}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/gif\Bits\0 : 4
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg\Extension : .jpg
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg\Image Filter CLSID : {607fd4e8-0a03-11d1-ab1d-00c04fc9b304}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg\Bits\0 : 2
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/pjpeg\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/pjpeg\Extension : .jpg
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/pjpeg\Image Filter CLSID : {607fd4e8-0a03-11d1-ab1d-00c04fc9b304}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/pjpeg\Bits\0 : 2
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/png\Image Filter CLSID : {A3CCEDF7-2DE2-11D0-86F4-00A0C913F750}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/png\Bits\0 : 8
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/tiff\Extension : .tif
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/tiff\CLSID : {02B01C80-E03D-101A-B294-00DD010F2BF9}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/tiff\Image Filter CLSID : {EBD0F6B6-4AED-11D1-9CDB-00805F0C62F5}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/tiff\Bits\0 : 4
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/tiff\Bits\1 : 4
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-jg\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-png\Image Filter CLSID : {A3CCEDF7-2DE2-11D0-86F4-00A0C913F750}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-png\Bits\0 : 8
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-wmf\Image Filter CLSID : {607fd4e8-0a03-11d1-ab1d-00c04fc9b304}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-wmf\Bits\0 : 4
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-xbitmap\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/x-xbitmap\Extension : .xbm
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/xbm\Extension : .xbm
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/xiff\Image Filter CLSID : {EBD0F6B6-4AED-11D1-9CDB-00805F0C62F5}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/xiff\Bits\0 : 12
HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/xiff\Bits\1 : 12
HKEY_CLASSES_ROOT\MIME\Database\Content Type\message/rfc822\CLSID : {3050F3D9-98B5-11CF-BB82-00AA00BDCE0B}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/css\Extension : .css
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/h323\Extension : .323
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/html\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/html\Extension : .htm
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/html\Encoding : 8
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/iuls\Extension : .uls
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/plain\CLSID : {25336920-03F9-11cf-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/plain\Extension : .txt
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/plain\Encoding : 7
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/scriptlet\CLSID : {21617250-A071-11D1-89B6-006008C3FBFC}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/scriptlet\Extension : .sct
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/webviewhtml\CLSID : {25336920-03F9-11CF-8FD0-00AA00686F13}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/webviewhtml\Extension : .htt
HKEY_CLASSES_ROOT\MIME\Database\Content Type\text/x-scriptlet\CLSID : {AE24FDAE-03C6-11D1-8B76-0080C744F389}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/avi\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/avi\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/avi\Extension : .avi
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/mpeg\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/mpeg\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/mpeg\Extension : .mpeg
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/msvideo\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/msvideo\Extension : .avi
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/quicktime\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/quicktime\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/quicktime\Extension : .qt
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ivf\Extension : .IVF
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ivf\CLSID : {05589FA1-C356-11CE-BF01-00AA0055595A}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-la-asf\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-la-asf\Extension : .lsx
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-mpeg\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-mpeg\Extension : .mp2
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-mpeg2a\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-mpeg2a\Extension : .mp2
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ms-asf\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ms-asf\Extension : .asx
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ms-asf-plugin\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-ms-asf-plugin\Extension : .asx
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-msvideo\CLSID : {22D6F312-B0F6-11D0-94AB-0080C74C7E95}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-msvideo\MPlayer2.BAK.CLSID : {05589fa1-c356-11ce-bf01-00aa0055595a}
HKEY_CLASSES_ROOT\MIME\Database\Content Type\video/x-msvideo\Extension : .avi