File list (Check if you may need any files):
ADDON
.....\DISK.INI
.....\IMAGE
.....\.....\C51
.....\.....\...\BIN
.....\.....\...\...\C51.DLL
.....\.....\...\LIB
.....\.....\...\...\RTX51TNY.LIB
.....\.....\...\RTX_TINY
.....\.....\...\........\CONF_TNY.A51
.....\.....\...\........\DBG_TINY.DSW
.....\.....\...\........\GENRTX.BAT
.....\.....\...\........\READ.ME2
.....\.....\...\........\RIGHT.A51
.....\.....\...\........\RTX51TNY.A51
.....\.....\...\........\VERS.A51
C51
...\ASM
...\...\89C51IX2.INC
...\...\AT898252.INC
...\...\at89c5114.inc
...\...\AT89S53.INC
...\...\AT8xc5103.inc
...\...\C8051F000.INC
...\...\C8051F200.INC
...\...\REG152.INC
...\...\REG320.INC
...\...\REG410.INC
...\...\REG451.INC
...\...\REG452.INC
...\...\REG453.INC
...\...\REG504.INC
...\...\REG505C.INC
...\...\REG505L.INC
...\...\REG509.INC
...\...\REG51.INC
...\...\REG515.INC
...\...\REG515A.INC
...\...\REG515C.INC
...\...\REG517.INC
...\...\REG517A.INC
...\...\REG51F.INC
...\...\REG51G.INC
...\...\REG51GB.INC
...\...\REG52.INC
...\...\REG520.INC
...\...\REG528.INC
...\...\REG530.INC
...\...\REG552.INC
...\...\REG592.INC
...\...\REG652.INC
...\...\REG750.INC
...\...\REG781.INC
...\...\T89C5115.INC
...\...\t89c51ac2.inc
...\...\t89c51cc02.inc
...\...\TE5_CSOC.INC
...\...\TEMPLATE.A51
...\BIN
...\...\A51.EXE
...\...\AX51.EXE
...\...\BL51.EXE
...\...\C51.EXE
...\...\ccKeilVxx.exe
...\...\CO-KC51.LNT
...\...\CX51.EXE
...\...\D500.CHM
...\...\D500.DLL
...\...\DCORE51.CHM
...\...\DCore51.dll
...\...\DCYG.CHM
...\...\DCYG.DLL
...\...\DLPC.CHM
...\...\DLPC.DLL
...\...\DP51.CHM
...\...\DP51.DLL
...\...\ISD51.DLL
...\...\LIB51.EXE
...\...\LIBX51.EXE
...\...\LPC2EMP.DLL
...\...\LX51.EXE
...\...\Mon390.dll
...\...\Mon51.dll
...\...\OC51.EXE
...\...\OH51.EXE
...\...\Ohx51.exe
...\...\RTX51.DLL
...\...\RTXTINY.DLL
...\...\S51MX.DLL
...\...\S8051.DLL
...\...\T500.DLL
...\...\TCYG.DLL
...\...\TLPC.DLL
...\...\TP51.DLL
...\...\UL2uPSD.dll
...\EXAMPLES
...\........\0XFD
...\........\....\CCA.A51
...\........\....\EE
...\........\....\EE.C