Originally Posted by Tricky

Are all the machines on the network?

perform a net view > machines.txt
edit machines.txt to remove the information not required leaving you with \\machinename on each line
write a batch file with something along the lines of:
@echo
copy mylicencefile.lic %1\c$\locationoffile

then use from a cmd prompt:
for /f %v in ( machines.txt ) do batchfile %v

This will call the batch file for each line in the machines.txt providing the content of each line in variable %v

PS. You'll need to be an admin on each box to connect to the C$ share!