Today I was trying to get the Guest Additions service to start properly in my Virtual Box VMs running 32-bit versions of Debian 7 (wheezy). In fact I was getting the following error message at start-up:
Starting VirtualBox AdditionsVboxService: error: VbglR3Init failed with rc=VERR_FILE_NOT_FOUND
What fixed the issue for me was quite simple. I tried to run:
However, it prompted me to install Linux headers first, which I did. As part of the post-install process I noticed that dkms changes were being made. After logging out and back in, I noticed that window resizing was now causing the guest desktop to resize accordingly and after a reboot I saw the above error did not show up any longer.