Fix Version/s: None
MikTex 2.9.5105 (it's in rapps)
Make sure to use that exact version
the setup of MikTex failed for me, it always fails differently, but it will always fail.
I double-checked: That very same setup completes fine in 2k3sp2 and XPSP3
The first time I got a failure, it looked, like this, but the symptom changes with every test-execution
0.4.7RC1 when it wants to parametrize initexmf process.
following sounds interesting in setup.log
Maybe it has issues parsing the command-line options somehow (double-minus)?