layer7 protocols

i have some extension files in layer 7 protocols but there are Clint’s are downloading out of this extensions
so
i want almost extension files to limit downloading not limt browsing
my extentsion files are

/ip firewall layer7-protocol add name="EXE" regexp="\\.(exe)"
/ip firewall layer7-protocol add name="RAR" regexp="\\.(rar)"
/ip firewall layer7-protocol add name="ZIP" regexp="\\.(zip)"
/ip firewall layer7-protocol add name="7z" regexp="\\.(7z)"
/ip firewall layer7-protocol add name="CAB" regexp="\\.(cab)"
/ip firewall layer7-protocol add name="ASF" regexp="\\.(asf)"
/ip firewall layer7-protocol add name="MOV" regexp="\\.(mov)"
/ip firewall layer7-protocol add name="WMV" regexp="\\.(wmv)"
/ip firewall layer7-protocol add name="MPG" regexp="\\.(mpg)"
/ip firewall layer7-protocol add name="MPEG" regexp="\\.(mpeg)"
/ip firewall layer7-protocol add name="MKV" regexp="\\.(mkv)"
/ip firewall layer7-protocol add name="AVI" regexp="\\.(avi)"
/ip firewall layer7-protocol add name="FLV" regexp="\\.(flv)"
/ip firewall layer7-protocol add name="WAV" regexp="\\.(wav)"
/ip firewall layer7-protocol add name="RM" regexp="\\.(rm)"
/ip firewall layer7-protocol add name="MP3" regexp="\\.(mp3)"
/ip firewall layer7-protocol add name="MP4" regexp="\\.(mp4)"
/ip firewall layer7-protocol add name="RAM" regexp="\\.(ram)"
/ip firewall layer7-protocol add name="RMVB" regexp="\\.(rmvb)"
/ip firewall layer7-protocol add name="DAT" regexp="\\.(dat)"
/ip firewall layer7-protocol add name="DAA" regexp="\\.(daa)"
/ip firewall layer7-protocol add name="ISO" regexp="\\.(iso)"
/ip firewall layer7-protocol add name="NRG" regexp="\\.(nrg)"
/ip firewall layer7-protocol add name="BIN" regexp="\\.(bin)"
/ip firewall layer7-protocol add name="VCD" regexp="\\.(vcd)"

don’t do this with L7, but with transparent proxy. it will be much faster and more effective. L7 requires a really fast machine, and is not looking in extensions, but in ALL PACKETS