which servers can we use for sharing a s/w in a lan ?

i need to know the servers that one can use to share a s/w b/w computers within a lan…i.e can you tell the process by which we can install a particular s/w in a computer and it can be used and processed by others connected in a local lan without installing that s/w…it would be great if you could suggest some s/w to implement this whole process.
thanx.