why Mapguide server crashes

[padmini godavarthi]

Hi,
iam using mgos 2.0 with .nett 2.0 +IIS 5.0 on window xp and 512 mb RAM.
after deployment of my application
 iam  able to use 4 systems (4 users)at a time to run the application on server.
when iam trying to use on 5 th system the mapguide server is crashing......................?
can any one worked in this area ?.....................................
plz any body worked on this Area..................................


Regards,
Padmini G.