World Download provider results:
ef duplicate.full.rar :: 2011-07-14 :: Speed: 989 Kb/s
ef duplicate [FullVersion] :: 2011-07-10 :: Speed: 1829 Kb/s
[HIGHSPEED] ef duplicate :: 2011-07-13 :: Speed: 689 Kb/s
[TRUSTED DOWNLOAD] ef duplicate :: 2011-07-15 :: Speed: 836 Kb/s
EF Duplicate Files Manager v4 20 YAG :: 02-17-2012 :: 910 Kb/s
EF Duplicate Files Manager v4.40 Portable.exe :: 02-16-2012 :: 880 Kb/s
Ef Duplicate Mp3 Finder V3 30 yag :: 02-17-2012 :: 1310 Kb/s
Ef Duplicate Files Manager V4 20 yag :: 02-15-2012 :: 910 Kb/s
EF.Duplicate.Files.Manager.v4.40 YAG :: 02-17-2012 :: 830 Kb/s
TORRENT.CD DOWNLOAD ef duplicate :: 2010-10-15 :: Speed: 1537 Kb/s

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Site results:

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Crackdb.com results:
EF Duplicate Files Manager v4.20 :: 2 Kb :: 16.04.07
EF Duplicate Files Manager v4.40 :: 1 Kb :: 3.10.07
EF Duplicate Files Manager XP v3.21-NEC :: 84 Kb :: 24.02.06
EF Duplicate MP3 Finder v3.30 :: 2 Kb :: 16.04.07
EF Duplicate MP3 Finder v3.40 :: 1 Kb :: 3.10.07

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SerialNews.com results:
Sorry, no matches... :(