its creates virtual multi tasking i DOS

ettc51_dos_demo
...............\examples
...............\........\DEM2O_B.CPP
...............\........\DEM2O_B.IDE
...............\........\DEM2O_BP.CPP
...............\........\DEM2O_BP.IDE
...............\........\DEMO1_B.CPP
...............\........\DEMO1_B.IDE
...............\........\DEMO1_BP.CPP
...............\........\DEMO1_BP.IDE
...............\........\DEMO2_B.CPP
...............\........\DEMO2_B.IDE
...............\........\DEMO2_B3.CPP
...............\........\DEMO2_B3.IDE
...............\........\DEMO2_BP.CPP
...............\........\DEMO2_BP.IDE
...............\........\DEMT1_B.CPP
...............\........\DEMT1_B.IDE
...............\........\DEMT1_B3.CPP
...............\........\DEMT1_B3.IDE
...............\........\DEMT1_BP.CPP
...............\........\DEMT1_BP.IDE
...............\........\DEMT2_B.CPP
...............\........\DEMT2_B.IDE
...............\........\DEMT2_B3.CPP
...............\........\DEMT2_B3.IDE
...............\........\DEMT2_BP.CPP
...............\........\DEMT2_BP.IDE
...............\........\DEMT3_B.CPP
...............\........\DEMT3_B.IDE
...............\........\DEMT3_B3.CPP
...............\........\DEMT3_B3.IDE
...............\........\DEMT3_BP.CPP
...............\........\DEMT3_BP.IDE
...............\........\dos
...............\........\...\BGIN__01.FNT
...............\........\...\BGIN__02.FNT
...............\........\...\BGIN__03.FNT
...............\........\...\BGIN__04.FNT
...............\........\...\BGIR__01.FNT
...............\........\...\BGIR__02.FNT
...............\........\...\BGIR__03.FNT
...............\........\...\BGIR__04.FNT
...............\........\...\BOLD.CHR
...............\........\...\BOLD.FNT
...............\........\...\dem2o_b.exe
...............\........\...\demo1_b.exe
...............\........\...\demo2_b.exe
...............\........\...\demt1_b.exe
...............\........\...\demt2_b.exe
...............\........\...\demt3_b.exe
...............\........\...\dser1_b.exe
...............\........\...\dser2_b.exe
...............\........\...\dser4_b.exe
...............\........\...\EGAVGA.BGI
...............\........\...\EURO.CHR
...............\........\...\EURO.FNT
...............\........\...\GOTH.CHR
...............\........\...\GOTH.FNT
...............\........\...\LCOM.CHR
...............\........\...\LCOM.FNT
...............\........\...\LITT.CHR
...............\........\...\LITT.FNT
...............\........\...\modem_b.exe
...............\........\...\SANS.CHR
...............\........\...\SANS.FNT
...............\........\...\SCRI.CHR
...............\........\...\SCRI.FNT
...............\........\...\SIMP.CHR
...............\........\...\SIMP.FNT
...............\........\...\timer_b.exe
...............\........\...\TRIP.CHR
...............\........\...\TRIP.FNT
...............\........\...\TSCR.CHR
...............\........\...\TSCR.FNT
...............\........\dos32
...............\........\.....\32RTM.EXE
...............\........\.....\BGI32.DLL
...............\........\.....\BGIN__01.FNT
...............\........\.....\BGIN__02.FNT
...............\........\.....\BGIN__03.FNT
...............\........\.....\BGIN__04.FNT
...............\........\.....\BGIR__01.FNT
...............\........\.....\BGIR__02.FNT
...............\........\.....\BGIR__03.FNT
...............\........\.....\BGIR__04.FNT
...............\........\.....\BGIVGA.DLL
...............\........\.....\BOLD.CHR
...............\........\.....\BOLD.FNT
...............\........\.....\demo2_b3.exe
...............\........\.....\demt1_b3.exe
...............\........\.....\demt2_b3.exe
...............\........\.....\demt3_b3.exe
...............\........\.....\DPMI32VM.OVL
...............\........\.....\EGAVGA.BGI
...............\........\.....\EURO.CHR
...............\........\.....\EURO.FNT
...............\........\.....\GOTH.CHR
...............\........\.....\GOTH.FNT
...............\........\.....\LCOM.CHR

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