VBoxDisp.dll is not digitally signed (on WinXP guest)

[ssybesma]

That is the (only) warning message I get using DXDiag on a Windows XP Pro SP3 32-bit guest.

I was hoping to find a digitally signed (WHQL) copy of that file to satisfy DXDiag.

The troubleshooting I'm doing regards the original version of "The Sims" game as played under the aforementioned Windows XP guest.

(The host machine is running Windows 10 Pro 1803 on an Intel NUC.)

The symptom is no video during the opening screen until it reaches the neighborhood.

On a previous install, sound was also choppy during the opening screen as well, however DXDiag likes the sound driver (no WHQL issue). I was thinking most of my issue is the video driver.

Thanks,

Steve

[socratis]

I was hoping to find a digitally signed (WHQL) copy of that file to satisfy DXDiag.

You won't. The virtual drivers are not submitted to Microsoft for signing. Plus, you can't even submit drivers for WHQL verification, for an OS which died in 2014, 5 years ago.

The troubleshooting I'm doing regards the original version of "The Sims" game as played under the aforementioned Windows XP guest.

Having a WHQL signed drive has no effect whatsoever with your ability to play a game. Never had, never will.

The symptom is no video during the opening screen until it reaches the neighborhood ... I was thinking most of my issue is the video driver.

Programs like these tend to push the physical hardware to their limit hence the strict requirements for the graphics card (GPU) specifications. Virtual machines will never be as powerful as the host, especially on the video side. They use after all a virtual graphics card, not your host's real graphics card. The virtual GPU itself is from around 1995-2000 in terms of capabilities. Applications that have high requirements on the GPU (drawing, 3D, games, video) are expected to not work as good as on the real hardware, if they work at all.