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--- tricks:codemeterstartproblem [2021/01/26 14:54] – icke_siegen
+++ tricks:codemeterstartproblem [2021/01/26 15:03] (current) – external edit 127.0.0.1
@@ Line 37: / Line 37: @@
 {{:tricks:cm_fehler.png|}}
+===== Solution =====
+I found this after intensively searching the webs: https://www.plcnext-community.net/en/discussions.html?controller=attachment&task=download&tmpl=component&id=309:
+> Open the “C:\Windows\System32\drivers\” or “C:\Windows\SysNative\drivers\” folder and check whether this folder includes a file called "Multikey.sys". You must delete this file.
+> Before you delete this file, open Windows Device Manager (Control Panel) and check whether a driver called "Virtual USB Multikey X64" is installed.
+> If this driver is installed, uninstall it before you delete the "Multikey.sys” file.
+> If this driver is not installed, delete the "Multikey.sys” file straightaway.
+>
+> Note:
+> Sometimes, the system uses the "Multikey.sys” file in the c:\windows\system32\drivers\ folder to emulate a dongle.
+> **This file is blacklisted by Wibu, as it interferes with the Wibu license system.**
+> Sometimes, you can even find the "Virtual USB Multikey x64" device driver when you open Windows Device Manager.
+> If this driver exists, the "Multikey.sys” file will also exist.
+After deleting this file and restarting windows Codemeter and Titan immediately work without problems.