So far it picked up com14, as not in use on first fireup.
BFG was using it. So I cleaned all the unused ports in DeviceManager with these commands in command prompt.
set DEVMGR_SHOW_NONPRESENT_DEVICES=1
devmgmt
tick show hidden in view
remove greyed out icons for hubs and com devices...
Reran the v6 client and it found all ports being used as it should..
2014.04.06 [01:54] Cannot probe COM4: port in use
2014.04.06 [01:54] Cannot probe COM17: port in use
2014.04.06 [01:54] Cannot probe COM16: port in use
2014.04.06 [01:54] Cannot probe COM15: port in use
2014.04.06 [01:54] No external devices detected.
2014.04.06 [01:54] BFL drivers: http://www.ftdichip.com/Drivers/VCP.htm ASICMiner and Antminer drivers: http://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx On Linux load FTDI driver: "sudo modprobe ftdi_sio vendor=0x0403 product=0x6014". You may lack access to serial ports (Ubuntu: "sudo usermod -a -G dialout USERNAME" then log out and back in).
2014.04.06 [01:54] Cannot probe COM14: port in use
2014.04.06 [01:54] Cannot probe COM3: port in use
2014.04.06 [01:54] Cannot probe COM7: port in use
2014.04.06 [01:54] Cannot probe COM12: port in use
2014.04.06 [01:54] Probe of port COM1 failed: timeout
The BFL message is not needed in this instance silabs is installed.
So all is well, next to run some U1 ants with it, all seems well so far.