PowerShell wrapper for runas.exe (Start-UserProcess)

Start-UserProcess.ps1

# this does not support all the features of runas.exe, but is a first stab
Function Start-UserProcess {
    param([Parameter(Mandatory=$true)][string]$Username, [switch]$SaveCredentials, [Parameter(Mandatory=$true)][string]$Program, [string[]]$ArgumentList)
    
    $program = & {
        if ($ArgumentList) {
            ((& { $Program; $ArgumentList }) | foreach { "\`"$_\`"" }) -join " "
        } else {
            "`"$Program`"";
        }
    }
    
    $saveCred = if ($SaveCredentials) { "/savecred" } else { "" }
    runas.exe "/user:$Username" $saveCred $program
}

# examples:
# Start-UserProcess -Username "MyDomain\MyUsername" -SaveCredentials -Program "notepad" -ArgumentList "C:\Temp\myfile.txt"