[GHC] #604: Windows installer: use WiX

[GHC]

#604: Windows installer: use WiX
---------------------------------+------------------------------------------
  Reporter:  simonmar            |          Owner:         
      Type:  task                |         Status:  new    
  Priority:  normal              |      Milestone:         
 Component:  Build System        |        Version:  None   
  Severity:  normal              |     Resolution:  None   
  Keywords:                      |             Os:  Unknown
Difficulty:  Difficult (1 week)  |   Architecture:  Unknown
---------------------------------+------------------------------------------
Changes (by simonmar):

  * architecture:  => Unknown
  * difficulty:  => Difficult (1 week)
  * os:  => Unknown

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Ticket URL: <http://cvs.haskell.org/trac/ghc/ticket/604>
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