I finally got it...
Microdem was crashing because it needed GDAL libraries, I found them here: http://www.gisinternals.com/query.html?content=filelist&file=release-1800-x64-gdal-1-11-3-mapserver-6-4-2.zip
I installed them, and showed microdem where I had them on my computer and it opened the DEM file.
THEN I followed the tutorial I found here:
http://www.blendswap.com/blends/view/52444
(you need to register to download)
WHEW!
Thanks Podrock!
