SharePoint Processing and handling of groups, when permissions have been assigned to the groups. (4354265)

In the past Microsoft, did not offer anything when processing permissions assigned to the groups.

In the meantime, Microsoft released some hotfixes and offers a way to re-permission groups on WSS 3.0 and MOSS 2007.

For earlier versions of SharePoint, there still appears to be no solution.

Migrating SharePoint Groups

Works for:

WSS 3.0
MOSS 2007

Requires:

Cumulative Update - 20090825 - WSS 3.0 (http://support.microsoft.com/kb/973409/)
Cumulative Update - 20090909 - MOSS 2007 (http://support.microsoft.com/kb/973410/)

Also Recommended:

Cumulative Update - 20100223 - MOSS 2007 (http://support.microsoft.com/kb/978392/)

Instructions:

Once the hotfixes have been downloaded and installed, use the SharePoint Processing Wizard to update permissions assigned to groups (this requires QMM 8.7 or later).

If you are using a version of QMM prior to 8.7, you can migrate the groups manually:

1. Use STSADM command. For example:
STSADM –o migrategroup –oldlogin OldDomain\OldGroup –newlogin NewDomain\NewGroup

2. (Optional) Update group display name cached in SharePoint (old display name is preserved until you also change it)

Using PowerShell to update new group display name:

[Reflection.Assembly]::Load("Microsoft.SharePoint, Version=12.0.0.0, Culture=Neutral, PublicKeyToken=71e9bce111e9429c")
$site = New-Object -TypeName Microsoft.SharePoint.SPSite -ArgumentList <url>
$group = $site.RootWeb.SiteUsers["<domain\group>"]
$group.Name = "<updated group name>"
$group.Update()

Quest developers consider to improve the Sharepoint Processing Wizard in future releases and to implement the same ability.