Windows service MYSQL reference

Please only people that know what i actually speakign about I have a windows vb.2019 form application that runs a simple insert statement, which works quite fine. I have copied all MYSQL ref-assemblies to one DLL directory, and referenced them from there. This works fine on the desktop application. I have copied the desktop code 1:1 to my service (same net version and hope that i have same setting X64 etc), and also importet all references from the DLL dir. When i start the service, and even just want to dim the mysqlconnection, the procedure will not run, it does not catch any err. If i call the sub with just the [login to view URL] the sub will run and write to log, as soon as I uncomment any MYSQL , it will not even write the logany more. It seems as if the service does not load the references, I just cannot find anything on this. Public Sub testhesub() [login to view URL]("mysql", "testthesub") 'Dim newcoon As MySqlConnection Try 'Dim connect As New MySqlConnection("server=localhost; user id=root; password=XXX; database=YYYY;") '[login to view URL]()