Check in the pristine copy of ICU 4.6...

icu46/source/test/iotest/iotest.vcxproj.filters

Index: icu46/source/test/iotest/iotest.vcxproj.filters
===================================================================
--- icu46/source/test/iotest/iotest.vcxproj.filters	(revision 0)
+++ icu46/source/test/iotest/iotest.vcxproj.filters	(revision 0)
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{f71b950f-71ac-42d5-95b8-42e38d0c925a}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{f58e3dfd-d825-49e5-ae9b-8bf2c87f91d7}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="filetst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="iotest.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="stream.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="strtst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="trnstst.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="iotest.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>