I have no interest in providing prebuilt win32 or 32-bit MacOS binaries for Decker; I don't have the necessary devices, and it would add an undue maintenance and release burden for a feature that would be used by a vanishingly small number of users. If there is overwhelming demand, somehow, I might reconsider this stance.
However, if anyone is interested in building Decker from source for these platforms, starting with Decker 1.49 I have already included a shim which allows Decker to be compiled against SDL 1.2, which in principle allows it to be used on Windows 98 and a variety of other obsolete platforms, with certain functional limitations. Your mileage may vary. Decker has fairly modest memory requirements, but performance may be poor on very old machines.
Further disclaimer: I do not wish to provide any tech support for compiling Decker on Windows; I find it viscerally unpleasant to interact with in any quantity.