How do i control 2 Directv boxes via serial?

[simfreak]

Ok; So i have a multitude of prolific USB2Serial adapers (all with the correct chipset); First one works fine no issues.
However, when i have 2 plugged in at once (or the end goal of 3) the other ones show the little yellow exclamation mark and "cannot start device"
HELP

Running windows7 x64, SAGE7beta; Latest prolific drivers.

[JetreL]

Have you tried forcing the COM port that is assigned to the Serial Adapters? That may help. Also windows will give you a brief description of what is the issue with the adapter.

[simfreak]

yea; it gets a com port just fine; I have also just tried randomly changing the com ports to something else; no go;

All windows says is 'the device could not start (10)'

[simfreak]

Found the problem by googleing; i guess the driver that comes with these things or the one on the prolific website is wrong;
i had to use this driver for 7 x64;
http://www.prolific.com.tw/support/f...3_20090319.zip

Hopefully this helps out someone someday.