I made portable Windows packages for TAPClean FE and the DC2N4-LC multithreaded GUI client available within my Software page.

I also removed DC2N2 and C2NEmu from my Sales page. The reason is that these projects are quite old. Therefore building and supporting them further is something I would not be keen on.
If you have seen them in my Hardware page and wish to acquire one, feel free to get in touch using my Contact form: I shall evaluate each case based on individual circumstances.