Comparison of file managers

Columns: Name | Creator | First public version ( date ) | Latest stable version ( date , number ) | Cost | Software license
DOS Shell | Microsoft / IBM | 1988 | 1998 | Part of MS-DOS / PC DOS ( OS ) | Proprietary | Double Commander | Alexander Koblov ( alexx2000 ) and others | 2007 | July 7 , 2019 ; 6 months ago ( 2019-07-07 ) ( 0.9.5 ) | Free | GPL | emelFM2 | tooar | September 6 , 2003 ( 2003-09-06 ) | February 18 , 2014 ; 5 years ago ( 2014-02-18 ) ( 0.9.1 ) | Free | GPL | Explorer++ | David Ercig | January 8 , 2008 ( 2008-01-08 ) | February 3 , 2013 ; 7 years ago ( 2013-02-03 ) ( 1.3.5 ) | Free | GPL | Far Manager | Eugene Roshal ( original ) ; Far Group | 1996 | 3.0 build 5000 ( 7 August 2017 ; 2 years ago ( 2017-08-07 ) ) [ ± ] | Free | BSD revised | File Commander | Brian Havard | 1993 | March 3 , 2011 ; 8 years ago ( 2011-03-03 ) ( 2.40 ) | A $ 35.00 | Proprietary | File Explorer | Microsoft | August 24 , 1995 ( 1995-08-24 ) | July 29 , 2015 ; 4 years ago ( 2015-07-29 ) | Part of Windows ( OS ) | Proprietary

Example questions:
What operating system can use the file manager that was created by David Ercig ? | When was the file manager that was created by Brian Havard ported to Microsoft Windows ? | How many people started up the company that created File Manager ? | What was the file manager that had it 's last stable version in 2009 originally released as ? | Who develops the file manager that had it 's last stable update on April 22 , 2019 ?

Answers:
Microsoft Windows | 1997 | 2 | PC/GEOS | Michael Herrmann