diff --git a/include/dmlc/io.h b/include/dmlc/io.h
index 8caf2a1f7..3db41c109 100644
--- a/include/dmlc/io.h
+++ b/include/dmlc/io.h
@@ -310,9 +310,10 @@ template<typename T>
 inline bool Stream::Read(std::vector<T> *out_vec) {
   uint64_t sz;
   if (this->Read(&sz, sizeof(sz)) == 0) return false;
-  out_vec->resize(static_cast<size_t>(sz));
+  size_t size = static_cast<size_t>(sz);
+  out_vec->resize(size);
   if (sz != 0) {
-    if (this->Read(&(*out_vec)[0], sizeof(T) * sz) == 0) return false;
+    if (this->Read(&(*out_vec)[0], sizeof(T) * size) == 0) return false;
   }
   return true;
 }
@@ -326,9 +327,10 @@ inline void Stream::Write(const std::string &str) {
 inline bool Stream::Read(std::string *out_str) {
   uint64_t sz;
   if (this->Read(&sz, sizeof(sz)) == 0) return false;
-  out_str->resize(static_cast<size_t>(sz));
+  size_t size = static_cast<size_t>(sz);
+  out_str->resize(size);
   if (sz != 0) {
-    if (this->Read(&(*out_str)[0], sizeof(char) * sz) == 0) {
+    if (this->Read(&(*out_str)[0], sizeof(char) * size) == 0) {
       return false;
     }
   }
diff --git a/windows/rabit/rabit.vcxproj b/windows/rabit/rabit.vcxproj
index 12cb43e07..5948e4c17 100644
--- a/windows/rabit/rabit.vcxproj
+++ b/windows/rabit/rabit.vcxproj
@@ -34,7 +34,7 @@
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>