Problem in creating autorun.inf file

<gras><gras>Hello,
i am not able to autorun the autorun.inf file from my pendrive.
for that i have coded 2 files like :

1: autorun.inf
[autorun]
open=autorun.exe
icon=bt.ico
label=hahaha

and also the file autorun.exe is errorless and able to run.

but it works for only "icon" and "label" but not run the "autorun.exe" when i
attach the pendrive.

i am hvng windows xp.

pls commit any suggestions u think....

thnk a lot nd lot for SAHI/GALAT JAVAB...

PLS HELP.....