File Extension Library


.PKGUNDEF File Extension

  • Developer by: Microsoft
  • Category: Developer Files
  • Format: Text

What are .PKGUNDEF files and how to open them?

Can't open .PKGUNDEF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .PKGUNDEF file.

What is a .PKGUNDEF file extension?

.PKGUNDEF file extension is created by Microsoft. .PKGUNDEF has been classified as Developer Files. The format of .PKGUNDEF file is Text.

.PKGUNDEF is Visual Studio Shell File

File created by Microsoft Visual Studio, a Windows system SDK; contains metadata, much like the .PKGDEF file, but is used to exclude certain registry entries from an isolated shell application; can list multiple registries to exclude.

When the isolated shell application is run a registry key is created for the application. The registry's appearances and behavior can be modified by PKGDEF files. The PKGUNDEF files are used to remove Visual Studio shell components from the application by removing specified keys and entries.

To remove a command function in the isolated shell application, you would uncomment the line (example) [$RootKey$Packages{8D8529D3-625D-4496-8354-3DAD630ECC1B}] in the PKGUNDEF file.

The location of PKGUNDEF files in, say Visual Studio 11.0, is C:\Program Files (x86)\Microsoft Visual Studio\11.0\Common7\IDE\. It will have the same name as the corresponding PKGDEF file.

List of all softwares that can open the Visual Studio Shell File
Windows
Microsoft Visual Studio 2017

How to fix problems with .PKGUNDEF files

  1. You need to update the application that you normally use to open .PKGUNDEF files. Only the latest version of the software supports the current .PKGUNDEF file format
  2. You need to check the .PKGUNDEF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)