Yeppi ! I get it !
Windows XP under VirtualBox on a iMac i7 27.
Also the cheap USB-Serial Adapter from Supermarket works !
Last step ( Problem ) is the result ion of the Display . i want the 2560 x 1440
Don´t know why it works only with 1600 x XXX.
VirtualBox can work in Fullscreen Modus.
XP said is Limited to 1600 x ( don´t know why ) , but it didn´t capture the Fullscreen Modus in VirtualBox
Visg has no limit ..or ?