[aprssig] FW: Tuning a TNC

Jim King jim at jimking.net
Wed Aug 25 10:09:50 CDT 2010

  16-bit Windows programs run on any 32-bit version of Windows, 
including Vista and Windows 7.

However, 16-bit Windows programs do NOT run on any 64-bit version of 
Windows.  That goes for XP, Vista, and Windows 7.

On 8/24/2010 12:00 PM, "Stephen H. Smith" <wa8lmf2 at aol.com> wrote:
>    Some further observations on the WaveTool utilities.
> 1)    These are actually 16-bit  Windows 3.1 programs, but they work well on
> 32-bit Windows 2000 and Windows XP systems.    They will NOT work on Windows
> Vista or Windows 7, since the 16-bit compatibility layer (a.k.a. the "thunker")
> that has existed in 32-bit Windows since Win 95 was quietly dropped in Vista
> and beyond.
> Note that this breaks many older supposedly 32-bit programs.  Many early
> Win95/Win98  "32-bit" programs contained chunks of 16-bit code (especially
> device drivers) recycled from their 16-bit Windows 3.1  predecessors.  Such
> programs depend on the thunker to seemlessly run the mix of 16- and 32-bit code.

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