problem about auto startup of vh usb server

I have RP-WD03 and have installed openwrt Luci. I have downloaded 'vhusbdmipsel' from the official site on my WD03. 'vhusbdmipael' is run only when I execute it manually through PuTTY. 'vhusbdmipsel' is in root directory. I write script in the box of startup of openwrt as below,

cd ~
./ vhusbdmipsel
exit 0

But it is not work. How can I run 'vhusbdmipsel' automatically when WD03 starts?

For a simple task, you can just execute it from "/etc/rc.local". Or for something more complex, you can create a script at "/etc/rc.d", and follow the examples there.