[dvratil]

I suppose the title means that they have the source code physically, just no one can understand it, because the author had to remove all comments and shorten all variable names to one character so that the code would fit into the RAM.

[simonh]

You’d have thought the author would have kept a lookup table of the full variable names. Maybe they did, but that was lost.

[progre]

I searched but I couldn't find out who this author is/was. Lines like "The author of TASC was very proud of this optimization." makes me think that Raymond Chen is the author, is this right?

[nevster]

Back of the manual states: Microsoft TASC was developed by James Peck and Michael T Howard

[progre]

The post states that it was developed by a single guy though.

[simonh]

It's possible someone else worked on it later.