REM Mass File Sender
REM Sends the specified file to all computers
REM in your network. 
REM Don't forget to replace "compyfile" before
REM executing this script.
SET copyfile=SomeFile.ext
net use S: /delete /y
@net view  | @FOR /F "tokens=1" %%c in ('@find "\\" ') do ( 
net use S: %%c\c$\bin
COPY %copyfile% S:\ /y
net use S: /delete /y
)