Installation simplicity

I have just downloaded the Solid Embedded Engine database from
www.solidtech.com. Installing Solid was a breeze - a single file to
untar, two commands to run (create initial database, start database
server), and I was running!

Compare this to the nightmare (for some people, at least) of installing
PostgreSQL. Yes, that includes compiling, which is complex in itself,
but I think that PgSQL installation could be much simpler.

Does anybody have ideas as to how this could be accomplished?
--
Windows is okay, because even though it crashes all the time, it pops up
a nice window and asks if its okay first.