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Affected Roles: Administrator, Owner
Related Digital Watchdog VMS Apps: DW Spectrum® IPVMS
Complexity: Medium
Software Version: v4.2 or newer
Last Edit: June 4, 2021
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The DW Spectrum® Client application requires a computer with support for OpenGL 2.1 or higher, whether on a virtual machine (VM) or an actual computer. In most cases, this is not an issue. However, if a user is utilizing a virtual machine (VMWare, VirtualBox) or a personal computer (PC) with limited graphics capability (or no GPU), OpenGL 2.1 may not be supported. As a result, DW Spectrum® Client will not run.
To resolve this issue, an emulation of the necessary graphics to function through the CPU may allow the Client to run if the Server application is also installed on a computer using Windows x64 OS.
This article will outline how to emulate a GPU using a CPU on a WinOS x64-bit system.
**DISCLAIMER: We do not recommend this method unless it is absolutely required. Even then, please be aware that you will be performing this at your own risk.
To emulate a GPU:
Extract the files “opengl32.dll” and “libglapi.dll” from the zipped/compressed folder.
C:\Program Files\Digital Watchdog\DW Spectrum\Client\<version_number>
**NOTE: “<version_number>” (above) refers to the DW Spectrum® Client software version number.
Launch the DW Spectrum® Client.
The DW Spectrum Client application will now utilize the CPU for some of the graphical processing. The processing load on the CPU of the host computer will increase as a result, so be sure to completely close the DW Spectrum® Client application when you are not actively using it.