Thank you, Martin, for all these details, that increase my hope ! I start to look around your interesting suggestions : - My webserver host run Debian 4.0 that should have embedded Xen 3.0.3. Since 3.0, Xen can run Windows, either Intel or AMD HW virtualizations. - so I should be able to load XP and after install my Windows application on it (I still have to grab the detail procedure !) - I find less details on KVM ....... and still some work to clarify the access ! Thank you, Martin, for your support !