Microsoft Virtual PC

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What is MS Virtual PC

Microsoft Virtual PC (renamed Windows Virtual PC for the Windows 7 release) is a virtualization suite for Microsoft Windows operating systems, and an emulation suite for Mac OS X on PowerPC-based systems. The software was originally written by Connectix, and was subsequently acquired by Microsoft. In July 2006 Microsoft released the Windows-hosted version as a free product. In August 2006 Microsoft announced the Macintosh-hosted version would not be ported to Intel-based Macintoshes, effectively discontinuing the product as PowerPC-based Macintoshes are no longer manufactured.

Virtual PC virtualizes a standard PC and its associated hardware. Supported Windows operating systems can run inside Virtual PC. However, other operating systems like Linux may run, but are not officially supported.Wikipedia

Download Link:


If you want to install OS/2 as a Guest on Virtual PC you require the following drivers:

Device Description Download
Video IBM VGA16 only for OS/2 2.0
Video S3 Trio 32/64 only for OS/2 2.x, Warp 3 until fixpak 35
Video IBM GRADD S3 / VESA requires Warp 3 fixpak 35, Warp 4 fixpak 5
Video Scitech SNAP 3.1.8 requires Warp 3 fixpak 35, Warp 4 fixpak 5
Audio Sound Blaster 16 Vibra not required, works with MMPM/2 supplied drivers
Network Intel 2104x/2114x 10/100 mbps Ethernet - V 3.00 older DC21X4.OS2 included in Warp 4

The Microsoft Virtual Machine Additions for OS/2 ver 13.500 is included on Virtual PC 2007. This tool will add the following driver on the Config.sys.


The Microsoft Virtual Machine Additions for OS/2 will add several functions:

  • Shared Folders allow access to directories at host filesystem by a drive letter
  • GRADD display driver
  • Mouse integration

Versions of Virtual PC

  • 1997: Connectix Virtual PC
  • Connectix Virtual PC 2
  • Connectix Virtual PC 3
  • Connectix Virtual PC 4
  • Connectix Virtual PC 4.1
  • Connectix Virtual PC 5
  • Microsoft Virtual PC 6.1
  • 2001: Connectix Virtual PC 4.0
  • 2002: Connectix Virtual PC 5.1
  • 2003: Microsoft Virtual PC 5.2
  • 2004: Microsoft Virtual PC 2004
  • 2006: Microsoft Virtual PC 2004 SP1 (first free available version)
  • 2007: Microsoft Virtual PC 2007 - 6.0.156
  • 2008: Microsoft Virtual PC 2007 SP1 - 6.0.192
  • 2009: Microsoft Virtual PC 2007 SP1 Hotfix rollup - 6.0.210

Tested versions of eCS and OS/2

Virtual PC under Windows

Under a Windows host this are the OS/2 and eCS versions tested to work:

Virtual PC Windows VPC Notes
OS/2 Version 5.1 5.2 2004 2004 SP1 2007 2007 SP1
IBM OS/2 1.2 Extended Edition not booting, not installable
IBM OS/2 1.3 Extended Edition T floppy disk problems, not installable
IBM OS/2 2.0 T T T T no network
IBM OS/2 2.1 T T T T no network
IBM OS/2 2.11 T T T T no network
IBM OS/2 2.11 SMP T T T T no network, only 1 cpu
IBM OS/2 Warp 3 T T T T no network
IBM OS/2 Warp Connect 3 T T T T
IBM OS/2 Warp Server T T T T
IBM OS/2 Warp 4 S S S S supported with fixpak 15
IBM WorkSpace on-Demand 1.0
IBM WorkSpace on-Demand 2.0
IBM OS/2 Warp Server for e-business S S S S
IBM OS/2 Warp 4.51 MCP/ACP S S S S
IBM OS/2 Warp 4.51 MCP/ACP S S S S
eComStation 1.0 T T T T
eComStation 1.1 T T T T
eComStation 1.2 T T T T
eComStation 2.0 T T T T


  • [Installing IBM OS/2 Warp 4.52 on Microsoft Virtual PC]
  • [Installing eComStation 2.0 on Microsoft Virtual PC]

About Windows 7

Windows 7 has another version of Virtual PC called "Windows Virtual PC", this version used to require hardware virtualization, but now it had been updated by MS to don't require that. If you have Windows 7, you can still install the older "Virtual PC" but it will not allow you to run it claiming it has compatibility issue.

There is a workaround on Windows 7 to make the old "Virtual PC" run:

  • Go to Control Panel,
  • Select Programs and Features,
  • At the Top left youll find "Turn windows Features on/off", click it,
  • At the bottom uncheck Windows Virtual PC,

It will ask you to reboot and it will make some changed on the configuration, after the reboot it will allow you to run the old "Virtual PC".

Warning: You can not run "Windows Virtual PC" and the older "Virtual PC" on the same Windows 7 Machine, you will have to choose one of both.


Reference and Links