A vud file extension is related to the Microsoft Virtual PC for Microsoft Windows and used for its virtual machine undo data.
Software that open vud file
VUD file extension - Microsoft Virtual PC virtual machine undo data
What is vud file? How to open vud files?
The vud file extension is associated with the Microsoft Virtual PC, a virtualization software for Microsoft Windows, which allows users to run virtualized operating systems on one physical machine.
The vud file contains virtual machine undo data.
The default software associated to open vud file:
Windows Virtual PC (Microsoft Virtual PC) 
Company or developer:
Microsoft Corporation
A virtualization application for Windows, Virtual PC let's you to run multiple desktop operating systems on one physical computer. Virtual PC officially supports virtualizing of Microsoft Windows, MS-DOS and OS/2 operating systems, but it is able to set custom settings for run Unix based operating systems.
List of recommended software applications associated to the .vud file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open vud file, edit vud file, convert vud file, view vud file, play vud file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with vud file - Microsoft Virtual PC virtual machine undo data
Click on the software link for more information about Windows Virtual PC (Microsoft Virtual PC). Windows Virtual PC (Microsoft Virtual PC) uses vud file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
