Salut !
Les fichiers cfg se trouvent dans le répertoire "cfg" du dossier "cs" (chez moi en tout cas).
De plus, tu auras peut-être à créer toi-même le fichier autoexec.cfg.

Merci pour ton aide mais j'ai trouver ce fichier.

// This file is overwritten whenever you change your user settings in the game.
// Add custom configurations to the file "userconfig.cfg".

unbindall
bind "TAB" "+showscores"
bind "ENTER" "+attack"
bind "ESCAPE" "cancelselect"
bind "SPACE" "+jump"
bind "'" "+moveup"
bind "+" "sizeup"
bind "," "buyammo1"
bind "-" "sizedown"
bind "." "buyammo2"
bind "/" "+movedown"
bind "0" "slot10"
bind "1" "slot1"
bind "2" "slot2"
bind "3" "slot3"
bind "4" "slot4"
bind "5" "slot5"
bind "6" "slot6"
bind "7" "slot7"
bind "8" "slot8"
bind "9" "slot9"
bind ";" "+mlook"
bind "=" "sizeup"
bind "[" "invprev"
bind "]" "invnext"
bind "`" "toggleconsole"
bind "a" "+moveleft"
bind "b" "buy"
bind "c" "radio3"
bind "d" "+moveright"
bind "e" "+use"
bind "f" "impulse 100"
bind "g" "drop"
bind "h" "+commandmenu"
bind "i" "showbriefing"
bind "j" "cheer"
bind "k" "+voicerecord"
bind "l" "showbriefing"
bind "m" "chooseteam"
bind "n" "nightvision"
bind "o" "buyequip"
bind "q" "lastinv"
bind "r" "+reload"
bind "s" "+back"
bind "t" "impulse 201"
bind "u" "messagemode2"
bind "w" "+forward"
bind "x" "radio2"
bind "y" "messagemode"
bind "z" "radio1"
bind "~" "toggleconsole"
bind "UPARROW" "+forward"
bind "DOWNARROW" "+back"
bind "LEFTARROW" "+left"
bind "RIGHTARROW" "+right"
bind "ALT" "+strafe"
bind "CTRL" "+duck"
bind "SHIFT" "+speed"
bind "F1" "autobuy"
bind "F2" "rebuy"
bind "F5" "snapshot"
bind "F6" "save quick"
bind "F7" "load quick"
bind "F10" "quit prompt"
bind "INS" "+klook"
bind "PGDN" "+lookdown"
bind "PGUP" "+lookup"
bind "END" "centerview"
bind "MWHEELDOWN" "invnext"
bind "MWHEELUP" "invprev"
bind "MOUSE1" "+attack"
bind "MOUSE2" "+attack2"
bind "MOUSE3" "+voicerecord"
bind "PAUSE" "pause"
_cl_autowepswitch "1"
_snd_mixahead "0.1"
ati_npatch "1.0"
ati_subdiv "2.0"
bgmvolume "1.000000"
bottomcolor "6"
brightness "1.000000"
cl_allowdownload "1"
cl_allowupload "1"
cl_backspeed "400"
cl_cmdbackup "2"
cl_cmdrate "30"
cl_corpsestay "600"
cl_crosshair_color "50 250 50"
cl_crosshair_size "auto"
cl_crosshair_translucent "1"
cl_dlmax "128"
cl_download_ingame "1"
cl_dynamiccrosshair "1"
cl_forwardspeed "400"
cl_himodels "0"
cl_idealpitchscale "0.8"
cl_lc "1"
cl_logocolor "#Valve_Orange"
cl_logofile "lambda"
cl_lw "1"
cl_minmodels "0"
cl_radartype "0"
cl_righthand "1"
cl_shadows "1"
cl_timeout "300"
cl_updaterate "20"
cl_vsmoothing "0.05"
cl_weather "1"
con_color "255 180 30"
console "1.000000"
crosshair "1.000000"
fastsprites "0"
fps_max "72.0"
fps_modem "0.0"
gamma "1.800000"
gl_dither "1"
gl_flipmatrix "0"
gl_fog "1"
gl_monolights "0"
gl_overbright "0"
gl_polyoffset "0.1"
hisound "1"
hpk_maxsize "4"
hud_capturemouse "1"
hud_centerid "0"
hud_draw "1"
hud_fastswitch "0"
hud_saytext_internal "1"
hud_takesshots "0"
joystick "0"
lookspring "0.000000"
lookstrafe "0.000000"
m_filter "0"
m_forward "1"
m_pitch "0.022"
m_side "0.8"
m_yaw "0.022"
model "gordon"
MP3FadeTime "2.0"
MP3Volume "0.800000"
mp_decals "300"
name "LE CRABE"
net_graph "3"
net_graphpos "1"
net_scale "5"
r_bmodelhighfrac "5.0"
r_detailtextures "0"
s_a3d "0"
s_automax_distance "30.0"
s_automin_distance "2.0"
s_bloat "2.0"
s_distance "60"
s_doppler "0.0"
s_eax "0"
s_leafnum "0"
s_max_distance "1000.0"
s_min_distance "8.0"
s_numpolys "200"
s_polykeep "1000000000"
s_polysize "10000000"
s_refdelay "4"
s_refgain "0.4"
s_rolloff "1.0"
s_verbwet "0.25"
sensitivity "11.330000"
skin ""
spec_autodirector_internal "1"
spec_drawcone_internal "1"
spec_drawnames_internal "1"
spec_drawstatus_internal "1"
spec_mode_internal "2"
spec_pip "0"
suitvolume "0.250000"
sv_aim "1"
sv_voiceenable "1"
team ""
topcolor "30"
viewsize "120.000000"
voice_enable "1"
voice_forcemicrecord "1"
voice_modenable "1"
voice_scale "0.750000"
volume "0.800000"
+mlook
+jlook
exec userconfig.cfg


Qu'est ce ?

Il me semble que c'est le fichier config.cfg :)