OS command type step in MSSQL Server job

[Lena]

Hello

I have sql 2K scheduled job and one of the steps is OS command that
executes perl script.
This steps is keep failing with the following error:
Executed as user: <user_name>. The process could not be created for
step 2 of job 0xBD57EEBEFFB0A9468CFBB23EE4F85847 (reason: %1 is not a
valid Win32 application). The step failed.

This is the syntax I'm using for this step inside sql job:
d:\scripts\bob_r.pl

Am I missing something in command line?

I can run this script from MSDOS without any problem.

Thank you,
Yelena