How to realize only one identical remoteApp per session per user per computer?

Question

If a terminalserver 2008 R1 is configured for only one session per user, everything works like it should if the user connects using the 'normal' remotedesktop session. A second connect with the same credentials kicks the first connect.
If a remoteApp is used instead of the 'normal' connect, it's possible to start multiple instances of this app within one user a least from one computer. mstsc do run multiple times and seem to link in the existent connection without kicking it. How to change
that?
Continuative:
The started RemoteApp checks the mutex of all started processes and stops herself if a process is found with the same mutex. This prevents multiple instances of this app within one user with the same sessionID. If a terminalserver is configured for only
one session per user, this RemoteApp shouldn't start multiple within one user. Using a "normal" remote desktop session the app doesn't start more than one time, I tested it. Used as RemotApp, the app starts multiple! Possibly I'm able to change this behaviour
with a code fix instead of configuring terminal services. Any tips regarding mutex and terminalservers?

Answer 1

Hi,
I tested the following code and it is working for me both in a RemoteApp and Full session:
Imports System.Threading
Module Main
Sub Main()
Dim createdNew As Boolean
Dim m As New Mutex(True, "TPMutex", createdNew)
If Not createdNew Then
Return
End If
Application.Run(Form1)
GC.KeepAlive(m)
End Sub
End Module
-TP