diff --git a/win32libs/icu/icu.py b/win32libs/icu/icu.py
--- a/win32libs/icu/icu.py
+++ b/win32libs/icu/icu.py
@@ -35,6 +35,15 @@
     def __init__(self, **args):
         MSBuildPackageBase.__init__(self)

+        datafile = os.path.join(os.path.dirname(os.path.abspath(__file__)), "icudt55l.dat")
+        if os.path.exists(datafile):
+            datafileDestination = os.path.join(self.sourceDir(), "data", "in", "icudt55l.dat")
+            if os.path.exists(datafileDestination):
+                os.remove(datafileDestination)
+            utils.copyFile(datafile, datafileDestination)
+
+        if CraftCore.compiler.isX64():
+            self.subinfo.options.configure.args = " /p:Platform=x64"
         if CraftCore.compiler.isX86():
             self.subinfo.options.configure.args = " /p:Platform=Win32"
         self.subinfo.options.configure.projectFile = os.path.join(self.sourceDir(), "allinone", "allinone.sln")