Re: DOS-based software, running in Virtual PC (Windows XP) 7.0 for Mac, can't find Mac modem

From: Steve Jain (essjae-No_at_Spam-hotmail.com)
Date: 02/12/05 

Date: Sat, 12 Feb 2005 13:17:02 -0800

Does your DOS app allow you to modify the COM settings? Does it match
the COM1/COM2 of the modem configured in VPC?

Have you set up the modem/serial port in the VM? Check VPC's help for
info on this.

On 12 Feb 2005 08:06:53 -0800, tim.mcgaw@ualberta.ca wrote:

>
>Thanks for your detailed response, John.
>
>I'll offer a bit more clarification.
>
>When operating when installed on my old Thinkpad.... this DOS software
>was not really trying to "communicate with the internet". Instead, it
>was using the dial-up modem on the Thinkpad to connect by long distance
>telephone line to the dial-up modem of PC in a firm that incorporates
>the received data into their weekly "tape" data submission (on behalf
>of my clinic and the numerous other clinics that contract with this
>firm) to our provincial health care insurer (the public health care
>equivalent, in Canada, of an HMO in the US).
>
>Please help me understand the comment in your second paragraph,
>regarding a modem.
>
>For example........if I were travelling with my Powerbook and relying
>upon my Earthlink dial-up internet connection (rather than the cable
>internet connection at home and work).... what does VPC do if:
>
>i) I am not already in the middle of a dial-up Internet session on my
>Powerbook, and;
>ii) I launch Internet Explorer from Windows in VPC.
>
>I would naively expect that VPC would only be able to establish the
>Internet connection, in the
>preceding scenario, by means of initiation of a dial-up connection to
>my Earthlink ISP provider and that this, in turn, would involve it's
>recognizing or communicating with the internal dial-up modem on my
>Powerbook.
>
>Not sure if I am making this clear, but I wanted to elaborate... since
>my read of your explanation, suggested that you were under the
>impressing that this was an e-mail issue or that this involved being
>able to use the cable internet connection active on my Powerbook. In
>contrast, my issue directly involves being able to use the Powerbook's
>dial-up modem for a dial-up connection to a computer in a different
>city.
>
>In light of the above clarification.... is there any further advice
>that you could offer?
>
>Thanks
>Tim
>
>tim.mcgaw@ualberta.ca wrote:
>> I'll preface this message by stating that I am an END-user of
>software,
>>
>> without any real intuitive insight into how programming code actually
>> works. Therefore the following question/problem will, no doubt,
>betray
>> my programming naivete.
>>
>>
>> I use Virtual PC for Mac 7.0 (Windows XP) for a single purpose......
>to
>>
>> operate a very old (but for me, essential) custom software
>> package.....essentially an antiquated DOS beast.
>>
>>
>> I used to carry around an old Thinkpad-X20 in my briefcase for the
>sole
>>
>> purpose of being able to run this software (everything else I do with
>a
>>
>> computer is on my beloved Powerbook).
>>
>>
>> For the most part, the old DOS-based billing software runs just fine
>in
>>
>> Virtual PC on my Powerbook, and I can enter all of my new weekly data
>> without a problem.
>>
>>
>> However..... the problem arises when this DOS-based program tries to
>> find, initialize, and use the internal modem on the Mac. It just
>can't
>> do it..... so I have to copy the datafile to my desktop PC once a
>week
>> in order to be able to submit my data by modem.
>>
>>
>> Perhaps one of you can look at what the DOS software is attempting to
>> do, from within Virtual PC environment in which I am running it, and
>> advise whether any subtle changes would let it find the Mac internal
>> modem.
>>
>>
>> The modem.dat file that the DOS program is attempting to use has the
>> following content/format....
>>
>>
>> 2
>> 9600
>> N
>> 8
>> 1
>> 1
>> 7
>> 7785240
>> 7785240
>> 7785240
>> ATDT,1,403
>> AT&F&N6Q0L2V1X4S0=1
>> 7785240
>> MODEM
>> ATZ
>> 2
>> 7785240
>> CONNECT 1200
>> CONNECT 2400
>> CONNECT 9600
>> BUSYNO CARRIERNO DIALTONENO ANSWERERROR
>> 423
>>
>>
>>
>> In looking at the preceding..... can anyone offer some insight as to
>> how this message string might possibly be reconfigured to enable it
>to:
>>
>> a) accomplish what it is attempting to accomplish above, but....
>> b) accomplish this through finding the internal modem on the
>Powerbook
>> that is running Virtual PC rather than the Windows-based internal
>modem
>>
>> with which it is impotently attempting to communicate?
>>
>>
>> Thanks!! 

-- 
Steve Jain, Virtual Machine MVP 
Website: http://www.essjae.com
"This posting is provided "AS IS" with 
no warranties, and confers no rights. 
You assume all risk for your use."

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