Commands for installing mIRC without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.
Related guide: Silent install switches: MSI, NSIS, Inno Setup · Uninstall a program with the registry or PowerShell
With winget
PowerShell
winget install --id mIRC.mIRC -e --silent --accept-package-agreements --accept-source-agreementswinget upgrade --id mIRC.mIRC -e --silentwinget uninstall --id mIRC.mIRC -e --silentBy installer
32-bit · EXE (NSIS)
Silent install
mirc783.exe /SCustom folder
mirc783.exe /S /D=C:\Apps\mircPowerShell: download, verify, install
Downloads the official file, checks its SHA256 and installs it silently.
install-mirc.ps1
$url = 'https://www.mirc.com/downloads/mirc/49/mirc783.exe'
$sha256 = 'C4E001B16AEFB94158C6EE0324491B843639548FE5FACBB04A03F45B7E3847A9'
$file = Join-Path $env:TEMP 'mirc783.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/S' -Wait 
