Rakefile in uia-0.6 vs Rakefile in uia-0.7.alpha.1

@@ -7,13 +7,21 @@
 
 RSpec::Core::RakeTask.new(:spec)
 
 task :default => :spec
 
-task :spec => :build_release
+task :spec => [:build_release, :build_release_x64]
 task :build => :spec
 
 desc 'Build the release version of UiaDll'
 build :build_release do |b|
   b.sln = 'ext/UiaDll/UiaDll.sln'
+  b.prop :Platform, 'Mixed Platforms'
   b.prop :Configuration, :Release
+end
+
+desc 'Build the release x64 version of UiaDll'
+build :build_release_x64 do |b|
+  b.sln = 'ext/UiaDll/UiaDll.sln'
+  b.prop :Platform, 'Mixed Platforms'
+  b.prop :Configuration, 'Release x64'
 end