Benjamin, I do have the same issue, i tried all different combination as you did but I was not successful. If you have a solution to address this issue please let me know. Umesh -- View this message in context: http://r.789695.n4.nabble.com/problem-with-D-COM-Server-tp3006087p3256639.html Sent from the R help mailing list archive at Nabble.com.