pgAgent Job: Issue with windows batch (exe application+ arguments)

Hi,pgadmin-hackers.

I am using pgagent(edb_pgagent_pg16.exe) to config job for custom application （.exe) with arguments.

The problem I encountered if I add command parameters as showed below, I got result with "r" 

but if I run the test.exxe without the parameters, the result is "s".

I am wondering if the pgagent batch scripts doesn't support run exe with parameters? How shall I workaroud this problem. 

Looking foward to your reply.

Thanks and best regards,

Joe