SonicWall NetExtender - Install/Update

Summary

This script installs/updates the latest version of the SonicWall NetExtender dynamically.

First Run: Execute the script with the user parameter SetEnvironment as 1 to import the EDFs needed for the script. Import EDFs Sample Run

Regular Run: Deploy SonicWall NetExtender Sample Run

Detects Existing Installations: Determines whether NetExtender is already installed and identifies the suitable installer format (MSI or EXE).
Retrieves Latest Version Info: This is collected by the Script - Application - Latest Version Detection and stored in the system properties SonicWALL.NetExtender.
Version Comparison: Compares the installed version with the latest available to decide if an update is needed.
Architecture-Based Installer Selection: Automatically selects the correct installer (x86, x64, or ARM64) based on the system architecture.
Secure Working Directory Setup: Creates a temporary directory with appropriate permissions for safe installation.
Silent Installation: Downloads and installs the software silently without user interaction.
Post-Installation Verification: Confirms successful installation and reports the outcome.
The script supports both MSI and EXE formats and includes robust error handling and validation mechanisms. If NetExtender is not already present on the system, the MSI version will be installed by default.