Question : removed a computer from a group

I have found this code and would like to modify it to remove instead of add. It will also be a computer that will be removed from the group, not a user if that makes any differance. How could this be modifed to work?
'' <summary>
''' Method to add a user to a group
''' </summary>
''' <param name="de">DirectoryEntry to use</param>
''' <param name="deUser">User DirectoryEntry to use</param>
''' <param name="GroupName">Group Name to add user to</param>
Public Shared Sub AddUserToGroup(ByVal de As DirectoryEntry, ByVal deUser As DirectoryEntry, ByVal GroupName As String)
Dim deSearch As DirectorySearcher = New DirectorySearcher()
deSearch.SearchRoot = de
deSearch.Filter = "(&(objectClass=group) (cn=" & GroupName & "))"
Dim results As SearchResultCollection = deSearch.FindAll()
Dim isGroupMember As Boolean = False
If results.Count > 0 Then
Dim group As New DirectoryEntry(results(0).Path)
Dim members As Object = group.Invoke("Members", Nothing)
For Each member As Object In CType(members, IEnumerable)
Dim x As DirectoryEntry = New DirectoryEntry(member)
Dim name As String = x.Name
If name <> deUser.Name Then
isGroupMember = False
Else
isGroupMember = True
Exit For
End If
Next member
If (Not isGroupMember) Then
group.Invoke("Add", New Object() {deUser.Path.ToString()})
End If
group.Close()
End If
Return
End Sub

Answer : removed a computer from a group

try this:

                       
             Private Shared Sub RemoveUserFromGroup(userDn As String, groupDn As String)
	Dim proc As Process = Process.Start("dsmod", String.Format("group ""{0}"" -rmmbr ""{1}""", groupDn, userDn))
	proc.WaitForExit()
	If proc.ExitCode <> 0 Then
		Console.WriteLine("Could not remove user {0} from group {1}", userDn, groupDn)
	End If
End Sub