System Info

Hai Friends!

Howz the day? I would like to share my doubts with you,im doing the application in VB.NET in which the system fact retrieval are included.For that purpose i need your support the following are my questions.

N.B: The existing OS is Windows2000

(1) How to find the system ON/SHUTDOWN time from the existing system?

(If anyone said,get through Event Viewer log.what can i do if the user deletes the log sheet in the Event Viewer)

(2) How to Shutdown,Restart,Logout and lock the system?

(3) How to find the softwares that are loaded in the system?

(4) How to find the information of system info like(RAM size,Processor Info,Motherboard Type,Mouse Type,Peripherals attached) of the system.

If you come across of any above problems tell me your best solution,articles,suggestion or peice of code from your side.Thanks in advance.

Cheers
SATHISH KUMAR