windows service cannot switch working directory?

[Green Law]

Hi,

My service will call an external batch file which need to switch the working
directory.

Unfortunately, I found the "cd" command not work when it start as a windows
service, while it DO work when I start the application in a console window.

Anybody knows what's wrong?

Regards,
Green

 

[Green Law]

I got the root cause. The directory I want the app switch to is on a mounted
logical disk which can be accessed only via console window, and it is an
illegal path when the app runs in a service progress.