How do you play Strain?

When I open up the zip file, I see strain.001 and stuff and unpack.bat or something. What do I do? As soon as I open unpack.bat it closes (Windows 2000). How do I use it? Is it possible to use it with like Zdoom?

Use an open command prompt to see what error's not letting it get unpacked. I think perhaps this issue has come up somewhere on here...

Yeah, I got it down.