[Wine] Using wine for legacy support under windows?

[Gert van den Berg]

On Tue, Mar 17, 2009 at 4:40 PM, John Drescher <drescherjm at gmail.com> wrote:
> On Tue, Mar 17, 2009 at 10:34 AM, mr jingle <wineforum-user at winehq.org> wrote:
>> I know it's totally unsupported and probably even a stupid question to ask considering that it's a topic that is nowhere to be discussed in the wiki, but I hope that someone with more clue could help me.
>>
>> I need to deploy on several machines (laptop) running vista 64 bit an old 16 bit accounting /groupware/calendar application, which is, of course, custom, proprietary and no longer supported by the developer (which was a local developer and has closed since a while, by the way)
>>
>
> The processor (AMD or Intel) does not support 16 bit protected mode
> applications while running in 64 bit mode so you need an emulator to
> run 16 bit under 64 bit.
>

It does support 16-bit protected mode code, but not real-mode code.
(At least Im not sure about the real-mode code...)

I assume Microsoft made a deliberate decision to drop 16-bit support
in 64-bit Windows, not necessary based on technical limitations...

See the table in this document:
http://developer.amd.com/Pages/623200373.aspx

Gert