HaskellPlatform 8.6.3 Installer Windows x64 Path setting error

[gfries]

System: Windows 7 Ultimate x64
Installer: HaskellPlatform-8.6.3-core-x86_64-setup.exe

I changed the installation directory to D:\HaskellPlatform\8.6.3
I changed the installation directory of Stack to D:\HaskellPlatform\8.6.3\HaskellStack
(no need for a user specific folder)

The installer changed the env Path to:
Path=C:\Program Files\Haskell\bin;D:\HaskellPlatform\8.6.3\lib\extralibs\bin;D:\HaskellPlatform\8.6.3\bin

The first part "C:\Program Files\Haskell\bin" is rubbish

[gbaz]

As per discussion in #219 (comment) C:\Program Files\Haskell\bin is where cabal-install will place globally installed binaries. So the platform installer itself doesn't put anything there. But it puts things elsewhere which in turn are configured to put things there.