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Release Notes

MSI-Deployment-Script

Release Date: 2026-03-05

Overview

This release focuses on PowerShell command/flag correctness, cross-version compatibility (Windows PowerShell 5.1 + PowerShell 7), and reliability hardening in remote pre-validation and reboot-detection logic.

What Changed

1) Cross-version reachability checks (Test-ComputerOnline)

  • Replaced fragile parameter usage with version-safe logic.
  • Added TCP WinRM probe flow:
    • Uses Test-NetConnection when available.
    • Falls back to .NET TcpClient probe when needed.
  • Added dynamic Test-Connection parameter selection:
    • ComputerName (PS5.1) vs TargetName (PS7)
    • timeout parameter support detected at runtime.

2) Async socket cleanup reliability

  • Hardened TcpClient async cleanup to avoid incomplete async state during timeout/failure paths.
  • Ensures connection completion/finalization and handle disposal are consistently attempted.

3) Summary banner output fix

  • Corrected 3 instances where Write-Host string concatenation dropped part of the output.
  • Result: separator/banner lines now render consistently.

4) DirectoryServices assembly load hardening

  • Added defensive Add-Type load for System.DirectoryServices.AccountManagement in credential validation.
  • Improves behavior consistency where auto-loading may vary by host/runtime.

5) Reboot detection compatibility (PS5.1 + PS7)

  • Updated reboot probes to prefer Get-CimInstance and fallback to Get-WmiObject when needed.
  • Removed WMI-specific property access patterns that are not valid for CIM objects.

Impact

  • Eliminates invalid/host-specific command flag usage that previously caused silent failures.
  • Improves pre-validation reliability and keeps behavior consistent across PowerShell versions.
  • Reduces risk of false-negative reboot detection in PowerShell 7 environments.

Validation

  • Script parsing/syntax validation passed after changes.
  • Command/parameter compatibility checks were performed against both PS5.1 and PS7 parameter behavior.

Files Updated

  • Install-RemoteMSI.ps1
  • changelog.md