Specify ETH_VERSION, ETH_BUILD_PLATFORM and ETH_BUILD_TYPE in common property sheet. Isn't ideal but we're not using cmake (yet) for VS 2013.

windows/LibEthereum.props

@@ -13,7 +13,7 @@
       <TreatWarningAsError>true</TreatWarningAsError>
       <MinimalRebuild>false</MinimalRebuild>
       <AdditionalIncludeDirectories>include/$(ProjectName);../libethereum;../../boost;../../leveldb/include;../../cryptopp;../secp256k1;../../miniupnp</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>STATICLIB;LEVELDB_PLATFORM_WINDOWS;USE_NUM_BOOST;USE_FIELD_10X26;USE_FIELD_INV_BUILTIN;_WIN32_WINNT=0x0501;WIN32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ETH_VERSION=0.3.3;ETH_BUILD_PLATFORM=Windows/VS2013;ETH_BUILD_TYPE=$(Configuration)-$(Platform);STATICLIB;LEVELDB_PLATFORM_WINDOWS;USE_NUM_BOOST;USE_FIELD_10X26;USE_FIELD_INV_BUILTIN;_WIN32_WINNT=0x0501;WIN32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeTypeInfo>true</RuntimeTypeInfo>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>