hi is there any command to get LIST of all the computer in LAN?

if so how?
I don't know about a command, but famatech.com, the makers of Radmin, make some free utilities that will scan your network (or a specified RANGE of IP's) and tell you what ones are dead or alive, the names if applicable and other info. Pretty NEAT and free!!!!.I'm not sure what you want to do, but you could make a batch file and PING all ips 192.168.1.2-192.168.1.255, and have it list the ones in which it pinged successfully. Would take a little while though, but it's pretty much the same thing as a program like lansurveyor would do.
if you are the administrator of the network, you should have a list of the ip address range that your company is using.i am not administrator nor i know abt BACH file

can you tell me some software utility that do that

gimmie pad linkGreat software:

http://www.solarwinds.com/products/lansurveyor/
C:\windows\system32\ddeshare
click that
shares then select computer

it does give you the list of computers in your network
not sure if it works with lan

Or you can try netstat on CMD
not sure if it will work but worth a trynet view