I never released it, as there were plenty of others already available at the time. It was written in pure Win32, and a single portable .exe of <32KB.

We never had any trouble from the MSN team.

Judging by the huge number of other thirdparty clients, I don't think Microsoft bothered to do anything about them, and almost treated it like they did Windows piracy --- they would rather you use a thirdparty client with MSN than a competitor's network; I suspect the fact that this was also not long after their antitrust lawsuit also had some influence.