Hi,
I found a small annoyance in the launcher, when trying to match my ADFs with OAGD.net.
My IPF zipped file are correctly recognized, but none of my ADZ files. I found out that the reason was the gzip encoding of these files. When I gunzip them to plain ADFs, the sha1 is recognized. When I ZIP the ADFs to an ADZ file, they are also recognized. Only the gzip encoding does not work.
Once again, congratulations for this great work!