Appendix F. Sideloading Handbook X Windows Client

This appendix explains how to install the Handbook X Windows client app without going through the Microsoft Store (sideloading).

What is Sideloading?

Sideloading is a method of directly installing Windows applications (MSIX packages) without going through the Microsoft Store. It is used in environments where access to the Microsoft Store is restricted, such as in corporate or organizational settings.

Prerequisites

The following conditions are required for sideloading:

OS: Windows 11
User account with administrator privileges
Developer mode enabled, or sideloading permission settings

How to Enable Developer Mode

Open the Settings app
Select Privacy & Security > For developers
Turn on Developer Mode

Note: Depending on your organization's policies, this setting may be restricted. In that case, please contact your IT administrator.

Installation Steps

1. Download the Sideloading Package

Download the ZIP file for sideloading from the following URL:

Download URL: https://download.handbookx.com/sideloading/sideloadinghandbookx.zip

2. Extract the ZIP File

Right-click the downloaded sideloadinghandbookx.zip file
Select Extract All...
Specify the destination folder and click Extract

After extraction, the following file is included:

sideloadinghandbookx.msix - Main application package

3. Install the MSIX Package

Double-click the .msix file in the extracted folder
The installer screen will appear
Click the Install button
Wait for the installation to complete

4. Verify the Installation

Once the installation is complete, you can launch the app using the following methods:

Search for "Handbook X" from the Start Menu and launch it
Click the Launch button on the installation completion screen

Uninstallation

Apps installed via sideloading can be uninstalled the same way as regular apps:

Open Settings > Apps > Installed apps
Search for "Handbook X"
Click the ... menu next to the app and select Uninstall

Troubleshooting

If Installation Fails

Symptom	Cause	Solution
"This app cannot be installed" is displayed	Developer mode is disabled	Enable developer mode in Settings
"Cannot verify certificate" is displayed	Certificate is not installed	Install the certificate and try again
"Dependencies are missing" is displayed	Required runtime is missing	Install the dependency packages
"This app package is not supported" is displayed	Windows version is outdated	Update Windows to the latest version

Frequently Asked Questions

Q: Is there any functional difference between the sideloaded version and the Microsoft Store version?

A: No, there is no difference in functionality. Both are the same application.

Q: Will automatic updates be performed?

A: The sideloaded version does not receive automatic updates via Microsoft Store. When a new version is released, please download and install it again.

Q: Can it be distributed in bulk within an organization?

A: Yes, you can distribute MSIX packages to devices within your organization using MDM solutions such as SCCM (Microsoft Endpoint Configuration Manager) or Intune.

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