[Elecraft] USB to Serial Cable [KUSB]

[Jürgen Weidemann]

How can the USB-to-Serial Cable be used with WinVista? 

The driver CD that came with the cable from Elecraft does not provide Vista
drivers. 

The Elecraft website (=> Software => K3 Software and Downloader => K3
Utilities for Windows, Mac and Linux => Important) solicitates installing
the latest USB drivers from the Prolific web site instead of the older ones
on the supplied disk.

At http://www.prolific.com.tw/eng/downloads.asp?ID=31, however, notifies
readers, that Prolific will not be providing Vista drivers for end-users and
refers customers to the “vendor of your cable”. 

Did anybody succeed to install and use the cable with WinVista – and how?

Secondly, the cable uses the 9pin-serial port at the rear panel. The same
port is needed for the cable to control the linear amplifier (in my case
HL-1.5KFX which requires Kenwood cable and command). How can I use computer
AND amplifier with the K3 at the same time? 

Any suggestions? Thanks!

73’s DF1AL Joe