SPJeff

When testing role based security, it can be helpful to right click IE and “Run as different user.”   The below PowerShell script automates this process to make it easier to launch multiple IE windows for testing.   Keeping a copy on Windows 7/8 workstations can help users jump into testing easily and with fewer password typo lockouts.    If you find this helpful, please leave a comment. 

# Launch multiple IE windows as different test user accounts.  Great for testing role based security systems.
# Updated line 3 with user name, line 6 with Active Directory domain, and line 9 with SharePoint URL.
$users = ('sptest1','sptest2','sptest3','sptest4')
foreach ($u in $users) {
	Write-Host $u
	$username = ('domain\' + $u)
	$password = 'pass@word1'
	$cred = New-Object System.Management.Automation.PSCredential -ArgumentList @($username,(ConvertTo-SecureString -String $password -AsPlainText -Force))
	Start-Process "c:\Program Files\Internet Explorer\iexplore.exe" -LoadUserProfile -Credential $cred -ArgumentList "http://sharepointUrlHere"
}

Here is a screenshot of the script in action.