Back from the semi-dead. I was able to get DOSBOX to run and connect with my E6K via a USB to Serial adapter. My problem is that sometimes the values are completely off (although not always, it seems to be random). For instance, it will say at idle my rpms are 15000, coolant temp is 300, air temp is 250, etc. Is there a fix for this? I'm running Windows 7 Professional 64 bit.

Using Windows XP (other systems make take slightly diff path)

1 - Right Click on MY COMPUTER, in the menu select MANAGE.

2 - Select DEVICE MANAGER option on the left pane.

3 - Open PORTS(COM&LPT), and select the USB-to-Serial Comm Port.
- Baud Rate = 9600 (for E6S and older), 19200 (for E6K/X)
- Data Bits = 8
- Stop Bits = 1
- Parity = none
- Flow Control = none

You can also slow down/speed up the emulation to improve performance

http://forums.haltech.com/viewtopic.php?f=13&t=1817