I recently put together a powershell script that can be used to update a profile property of all of the users stored in the SharePoint SSP.  At NewsGator we use a boolean property field to indicate if a particular part of our product has been activated or not.  There are some cases where this boolean flag needs to be reset for all users. To do this I put together a simple powershell script to reset this value for all users.

This could easily be adapted for other users so I thought I would post share it.

###########################
# "Configure Settings"
$SSPName = "SSPAdmin"
$MySiteUrl = "http://mysite/"
$propName = "newsgator-x-onboarded"
$propValue = "true"
###########################

#Load the SharePoint assemblies
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server")
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server.UserProfiles")

$ServerContext = [Microsoft.Office.Server.ServerContext]::GetContext($SSPName);
$UPManager = new-object Microsoft.Office.Server.UserProfiles.UserProfileManager($ServerContext);
$enumProfiles = $UPManager.GetEnumerator();
"Total User Profiles available:" + $UPManager.Count
$count=0;

#Loop through the SSP entries and update the property
foreach ($oUser in $enumProfiles)
{
    $count = $count + 1;
    $u = $oUser.Item("Accountname");
    Write-Output "($count):  Setting '$propName' to '$propValue' for $u";
    $oUser[$propName].Value = $propValue;
    $oUser.Commit();
}