DMD Windows 64bit target - how to setup the environment?

[realhet]

Thank You for fast help! I just reply late because I wanted to 
try out many things.

With Benjamin's list it was indeed easy to set up the environment.
I also installed LDC and it worked without problems too.
Made some tests about sse vectorization and it turned out that 
I'm in love with LDC now :D
( 
https://realhet.wordpress.com/2017/12/29/my-first-impressions-of-64-bit-dlang-compilers/ )

The next thing I wanna test is compiling speed.
As you said, DMD is fast enought to let it just compile all the 
project in one run, because it reuses a lot of data it discovered 
through the compiling process.
However I had a lot of experiences with Delphi which is a really 
fast one (at least on 32bits, without sse vectorization), and on 
top of that is uses incremental compilation. Later I got to 
Qt+MSVC, and noticed that my 40K LOC not-so-big project takes 40 
seconds to compile and another 10 to launch in the debugger. At 
the time when the program started, I already forgot why I started 
it to debug, lol. So that's why I was happy to find D, an elegant 
language that compiles fast, (not as fast as Delphi, 'though, but 
it is really comparable to it). So for development, I made a 
small incremental build manager thingie: It launches a DMD for 
each of the modules, that aren't in its cache. For a 6K LOC, 
220KB project i was able to test, it works well: When I modify a 
only high level module, it only takes 3 seconds to launch, not 7 
while I build it once with DMD. When the object cache is empty, 
it takes 6 seconds on all 8 cores, but it has to be done only 
once. On Delphi I had usually 0.5sec launch times when I changed 
only a few units, so if I have to choose 7 secs of 3 secs, then 
it's not even a question.

Anyways,
Thank You for help again!