Running Legacy Software on other Operating Systems

 

 

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Introduction

When running legacy Software on a different host operating system, a mixture of Virtual Machines and different operating systems may be used to achieve this.

For the purpose of this section the OS that is being used is Windows 8 64-bit. Windows has a function called compatibility mode. This allows the user to drop to a different number of bits, so that older Windows programs can still be run. The compatibility mode does not work with all programs, so this section explores how to get around that problem.

The main reason for the incompatibility is the number of bits (8-16-32 or 64) that the Operating System uses. See this article for further details. 

These programs are the ones we wish to use

ProgramUseOperating System
PipeDreamTo share Files from the Z88DOS 8-bit
Smartsuiteto convert spreadsheet filesWindows NT
WordStar to PipeDreamto convert Wordprocesser filesDOS 8-bit
PipeDream to WordStarto convert Wordprocesser filesDOS 8-bit

Using the table below

  • Smartsuite can be installed on Windows 8 64bit directly
  • PipeDream, Word to PipeDream, PipeDream to WordStar need a virtual machine

If a Windows 32-bit machine is used, no virtual machine is required.

  64 bit Windows Operating systemsOther OS Systems
  64-bit Operating Systems can run
programs on 32 bit systems
 

64-bit

64-bit

64-bit

64-bit
Apple MAC
8-bit DOS 32-bit Windows Operating systems 
 32-bit Operating Systems can
run programs on 16 bit systems
 
 
32-bit

32-bit
  
16-bit
  
  16-bit Operating systems 

8-bit
  

 

This gives the following options to run DOS 8-bit:-

Host Operating System Target Operating System
  DOS 8-bit
  Windows NT
   
   

 



 

 

 

Make older programs run in this version of Windows (Windows 7)
http://windows.microsoft.com/en-us/windows7/Make-older-programs-run-in-this-version-of-Windows

Windows 7 - Compatibility Mode
http://www.sevenforums.com/tutorials/316-compatibility-mode.html

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Help with Windows 7 compatibility problems
http://windows.microsoft.com/en-us/windows7/help/compatibility

Windows 7 Compatibility Center
http://www.microsoft.com/windows/compatibility/windows-7/en-us/default.aspx

The limits for DOS FAT12/16/32 file-systems
http://www.qnx.org.uk/developers/docs/6.3.2/neutrino/user_guide/limits.html#FAT

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History of Microsoft Windows
http://en.wikipedia.org/wiki/History_of_Microsoft_Windows

Leading OS: Windows, Mac, Linux

http://fatemayesmen.blogspot.co.uk/2012/05/leading-os-windows-mac-linux.html

 

 

Return to text - introduction

 

 

 

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