Visual Studio Documentation - Help Viewer 2.3: cab was not signed by Microsoft

Baspanov Oleg 1 Reputation point


I am using VS2019 (version 16.9.1), Help viewer 2.3. When attempting to download a help file (.Net API Reference), I get the error saying the cab file was not signed by Microsoft:

v2.Net API Referenca_C48DE2FA_en-us__3(332495cf-7837-eae3-003f-584257a98156).cab

Any help is appreciated.

Visual Studio Setup
Visual Studio Setup
Visual Studio: A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
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  1. AnnaXiu-MSFT 14,986 Reputation points

    Hi @Baspanov Oleg ,

    Welcome to Microsoft Q&A!

    In addition to .Net API Reference, have you installed other contents? Please check if the same error occurs when installing other contents.

    I installed the .Net API Reference online on my side and couldn’t reproduce your error. You can try the following workaround: remove the installed content > uninstall the Help Viewer in Visual Studio Installer > repair your VS > add the contents again.


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