Re: [Xen-devel] App virtualisation, not OS virtualisation

[graham <the_ether@xxxxxxxxxxx>]

> > I would like to run multiple copies of an application on a PC with
> > multiple remote dumb clients.
> >    
> Sounds like something better handled with LTSA, VNC or NX.
>  
VNC just provides remote access to the main keyboard / mouse queue and 
the transmission of the display.
I already have a solution for remote access but my problems are:

- I want to have several copies of an application running, each with a 
remote user. How do I pass the keyboard / mouse data to the right 
application if there is only one Windows message queue?
- on start up an application normally checks to see if a copy of itself 
is already running and if it is, it stops loading itself.
If the NX you are referring to is Linux terminal server then that's no 
use because:
- it doesn't solve the two problems I mentioned above

- it is a Linux product and as I previously said, I need a solution with 
Windows XP.
I don't know LTSA can you give me a URL?

> With unix you can native run several copies of the same application at
> the same time. With X11 you can even do so from multiple locations.
>  
Fine, but as I said, I need a solution for Windows XP.

> Xen however is very useful for running the domain that might serve
> such applications.
>  
Well that was my original question. As I understand it, Xen has been 
designed to act as an encapsulation of the OS so that several copies / 
versions of OS can be run. But it seems a waste of memory (and licence 
fee?) if I need a complete copy of Windows XP for each copy of the 
application I want to run. I was wondering whether Xen, or a part of Xen 
could run on top of Windows XP to encapsulate just the application 
instead, so that I could run multiple copies of the application but just 
one copy of the OS.
g.



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