Getting Local User SID from a list?

Hi Guys,

I'm afraid my scripting knowledge is not very strong and am trying to learn it as i go along.. but I'm stuck in the mud with something I'm trying to accomplish.

I'm using the below script I found on the net to get the SID for local user accounts, which works fine.

$objUser = New-Object System.Security.Principal.NTAccount("User1")
$strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier])	
$strSID.Value
$objUser,$strSID | out-file -filepath C:\test.txt

however I am wanting to do this with a list of local users which i have listed in a .csv file as:

user1

user2 etc.

I've then tried using something like this to get the SID for the whole list of local users, but it doesn't seem to be working for me.

$UserList=IMPORT-CSV C:\Users.csv

foreach($_ in $UserList)
	$strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier])	
	$strSID.Value
	$objUser,$strSID | out-file -filepath C:\test.txt

can anyone see where I'm going wrong... or advise me what format the .CSV file should be.

thanks in advance

C.

Regards Carlos Ferreira