Resource editor: ResEd
https://fbedit.svn.sourceforge.net/svnroot/fbedit/ResEd22/ResEd.zip
Hex editor: HexEd
https://fbedit.svn.sourceforge.net/svnroot/fbedit/HexEd/HexEd.exe
Masm IDE: MasmEd
https://fbedit.svn.sourceforge.net/svnroot/fbedit/MasmEd/Release/MasmEd.zip
Simple CAD: SimCad
https://fbedit.svn.sourceforge.net/svnroot/fbedit/SimCad/SimCad.exe
https://fbedit.svn.sourceforge.net/svnroot/fbedit/SimCad/Symbols/
8051 / 8052 simulator: Sim52
https://fbedit.svn.sourceforge.net/svnroot/fbedit/Sim52/Sim52.zip
KetilO