diff --git a/api/boinc_api.h b/api/boinc_api.h
index 1fbe817b25..55242d0443 100755
--- a/api/boinc_api.h
+++ b/api/boinc_api.h
@@ -29,7 +29,7 @@
 
 #include "app_ipc.h"
 
-using std::string;
+using namespace std;
 
 // ****************************************************************************
 // ****************************************************************************
diff --git a/client/stdafx.h b/client/stdafx.h
index 6ec0d4c827..04b4f85c01 100644
--- a/client/stdafx.h
+++ b/client/stdafx.h
@@ -19,15 +19,15 @@
 // Modify the following defines if you have to target a platform prior to the ones specified below.
 // Refer to MSDN for the latest info on corresponding values for different platforms.
 #ifndef WINVER                  // Allow use of features specific to Windows 95 and Windows NT 4 or later.
-#define WINVER 0x0501           // Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
+#define WINVER 0x0400           // Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
 #endif
 
 #ifndef _WIN32_WINNT            // Allow use of features specific to Windows NT 4 or later.
-#define _WIN32_WINNT 0x0501		// Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
+#define _WIN32_WINNT 0x0400		// Change this to the appropriate value to target Windows 98 and Windows 2000 or later.
 #endif						
 
 #ifndef _WIN32_WINDOWS          // Allow use of features specific to Windows 98 or later.
-#define _WIN32_WINDOWS 0x0501   // Change this to the appropriate value to target Windows Me or later.
+#define _WIN32_WINDOWS 0x0400   // Change this to the appropriate value to target Windows Me or later.
 #endif
 
 #ifndef _WIN32_IE               // Allow use of features specific to IE 4.0 or later.