TeaRex: thanks. Is there any info any where about the 'virtual' settings or commands implemented by : xms=true - presumably DEVICE=C:\DOS\HIMEM.SYS umb=true - presumably DOS=HIGH,UMB ems=false - presumably DEVICE=C:\DOS\EMM386.EXE NOEMS What about emulating: CONFIG.SYS: FILES=50 BUFFERS=5 STACKS=0,0 …

Yes Could you possibly give me an example (preferably using the settings shown)? Sorry if this is basic but I'm new to DOSBOX. Thx.[/quote]

I am trying to run an app which requires a a DOS memory manager be loaded e.g. EMM386, QEMM. So I might, for example, need the following environment: MS DOS 5 / EMM386 - CONFIG.SYS DEVICE=C:\DOS\HIMEM.SYS DEVICE=C:\DOS\EMM386.EXE NOEMS DOS=HIGH,UMB FILES=50 BUFFERS=5 STACKS=0,0 BREAK=ON MS DOS 5 / …

Thx for that. Actually I've discovered an XP command called 'forcedos' which causes XP to recognise programs as MS-DOS progs. With this I've got the compiler to compile OK.

I'm running DOSBox 0.72, have set up a batch file to set the required environment variables and mounted my MSCOBOL5 directory. But when I try to compile I get error messages stating that, for example, \BIN does not exist, or that it cannot find the help file (which is there and on the path). It …