Ah, the quest is on.  Since this radio is long out of production the 
file is hidden deep in the secret Kenwood  vault:

http://www.kenwoodusa.com/Support/AMA_Radios/#_


Look for the link that says  rcp-570.  I think this is  it, for what 
it's worth.

73, Steve KW3A
On 8/12/2011 9:38 AM, John Miller wrote:
> They did release one, I can't say much about it since I always thought it
> was stupid to use computer software to control a radio right in front of me
> but the software  is out there.
> ----- Original Message -----
> From: "Steve Forst"<[log in to unmask]>
> To:<[log in to unmask]>
> Sent: Friday, August 12, 2011 9:29 AM
> Subject: Re: Kenwood TS-570
>
>
>> Just for the heck of it, I took a look at the Kenwood download page to
>> see if there was a program for the 570.  Doesn't seem like they released
>> one for that rig.
>>
>> It's still a good link to keep handy for  other Kenwood gear:
>>
>> http://www.kenwood.com/i/products/info/amateur/software_download.html
>>
>> Not sure what you are trying to do, but as Colin said HRD is something
>> to look at.  Also, most of the modern logging software will interface
>> nicely with the rig and pull  freq and mode from the radio and date and
>> time from the PC, so you don't have to enter manually.   Besides the
>> N3FJP software mentioned earlier, a number of us use XMlog for general
>> logging.  Some of the guys here use N1MM for contest logging, and I use
>> Writelog for that purpose.
>>
>> 73, Steve KW3A
>>
>>
>> On 8/12/2011 1:22 AM, colin McDonald wrote:
>>> Ham Radio deluxe works ok.
>>> It's a bit tedious with JFW as you have to use jaws cursor and mouse
>>> click
>>> on allot of stuff.
>>> I always find it is too tedious to bother with if the rig is right there
>>> in
>>> front of you.
>>> Unless more functionality can be accessed from the software, and in the
>>> case
>>> of kenwood radios, there is no additional functionality through HRD than
>>> there is on the front of the rig.
>>> For rigs without a speech synth, you can use HRD to get spoken frequency,
>>> mode and S-meter readings...as long as that rig is supported by HRD.
>>>
>>> I don't know if kenwood released a control program for the 570.  I know
>>> MCP2000 was released for the ts2000 though and that apparently works ok
>>> with
>>> JFW/win eyes etc.
>>>
>>> 73
>>> Colin, V A6BS
>>> ----- Original Message -----
>>> From: "Howard, W A 9 Y B W"<[log in to unmask]>
>>> To:<[log in to unmask]>
>>> Sent: Thursday, August 11, 2011 10:04 PM
>>> Subject: Kenwood TS-570
>>>
>>>
>>>> Hi, has any blind ham found any rig control software that is usable with
>>>> =
>>>> the Kenwood TS-570?
>>>>
>>>> If so, pros, cons etc.
>>>>
>>>> Howard T. W A 9 Y B W.
>>>> =20
>>>
>