Powershell: Install-dotNET4 function
- by marc dekeyser
This function will download and install ,NET 4.0. It uses the Get-Framework-Versions function to determine if the installation is necessary or not. Internet Connectivity will be required as the script auto downloads the setup file (and sleeps for 360 seconds... I had a function in there to monitor for install completion at first, turns out the setup file spawns so many childprocesses the function just got confused and locked up -_-)Alternatively you could drop the installation file in the folder specified on the $folderPath variable too. That will skip the download and use the file. This function easily adapts in to other versions f.e. I use it for Powershell 3 installs as well!Function install-dotNet4 () { if(($InstalledDotNET -eq "4.0") -or ($InstalledDotNET -eq "4.0c")){ write-host ".NET 4.0 Framework is already installed" -foregroundcolor Green } else{ #set a var for the folder you are looking for $folderPath = 'C:\Temp' #Check if folder exists, if not, create it if (Test-Path $folderpath){ Write-Host "The folder $folderPath exists." -ForeGroundColor Green } else{ Write-Host "The folder $folderPath does not exist, creating..." -NoNewline -ForegroundColor Red New-Item $folderpath -type directory | Out-Null Write-Host " - done!" -ForegroundColor Green } # Check if file exists, if not, download it $file = $folderPath+"\dotNetFx40_Full_x86_x64.exe" if (Test-Path $file){ write-host "The file $file exists." -ForeGroundColor Green } else { #Download Microsoft .Net 4.0 Framework Write-Host "Downloading Microsoft .Net 4.0 Framework..." -nonewline -ForeGroundColor DarkYellow $clnt = New-Object System.Net.WebClient $url = "http://download.microsoft.com/download/9/5/A/95A9616B-7A37-4AF6-BC36-D6EA96C8DAAE/dotNetFx40_Full_x86_x64.exe" $clnt.DownloadFile($url,$file) Write-Host " - done!" -ForegroundColor Green } #Install Microsoft .Net Framework Write-Host "Installing Microsoft .Net Framework..." -nonewline -ForegroundColor DarkYellow $dotNET4 = $folderPath+"\dotNetFx40_Full_x86_x64.exe /quiet /norestart" Invoke-Expression $dotNET4 write-host " - done!" -ForegroundColor Green start-sleep -seconds 360 }}
