Windows Advanced Server 2000

Hello,
when i server open so my windows logo display and hangup system. i want to repair windows but problems is that my softwares is important is already installed. i have no backup cd/software folder. what can i do for windows repair. i have ibm350 system. remember friends my "c:/programs/ software is already configured for client" never remove and when i reinstall windows so running my all program softwares.

think about it.
Thanks