diff --git a/easy_profiler_core/event_trace_win.cpp b/easy_profiler_core/event_trace_win.cpp
index 0083f36..432aea9 100644
--- a/easy_profiler_core/event_trace_win.cpp
+++ b/easy_profiler_core/event_trace_win.cpp
@@ -58,7 +58,10 @@
 #include <Psapi.h>
 
 #if EASY_OPTION_LOG_ENABLED != 0
-#include <iostream>
+# include <iostream>
+# ifndef EASY_ETW_LOG
+#  define EASY_ETW_LOG ::std::cerr
+# endif
 #endif
 
 //////////////////////////////////////////////////////////////////////////
@@ -275,7 +278,7 @@ namespace profiler {
 
 #if EASY_OPTION_LOG_ENABLED != 0
         if (!success)
-            ::std::cerr << "Warning: EasyProfiler failed to set " << _privelegeName << " privelege for the application.\n";
+            EASY_ETW_LOG << "Warning: EasyProfiler failed to set " << _privelegeName << " privelege for the application.\n";
 #endif
 
         return success;
@@ -295,7 +298,7 @@ namespace profiler {
 #if EASY_OPTION_LOG_ENABLED != 0
             const bool success = setPrivilege(hToken, SE_DEBUG_NAME);
             if (!success)
-                ::std::cerr << "Warning: Some context switch events could not get process name.\n";
+                EASY_ETW_LOG << "Warning: Some context switch events could not get process name.\n";
 #else
             setPrivilege(hToken, SE_DEBUG_NAME);
 #endif
@@ -305,7 +308,7 @@ namespace profiler {
 #if EASY_OPTION_LOG_ENABLED != 0
         else
         {
-            ::std::cerr << "Warning: EasyProfiler failed to open process to adjust priveleges.\n";
+            EASY_ETW_LOG << "Warning: EasyProfiler failed to open process to adjust priveleges.\n";
         }
 #endif
     }
@@ -358,26 +361,26 @@ namespace profiler {
                 }
 
 #if EASY_OPTION_LOG_ENABLED != 0
-                ::std::cerr << "Error: EasyProfiler.ETW not launched: ERROR_ALREADY_EXISTS. To stop another session execute cmd: logman stop \"" << KERNEL_LOGGER_NAME << "\" -ets\n";
+                EASY_ETW_LOG << "Error: EasyProfiler.ETW not launched: ERROR_ALREADY_EXISTS. To stop another session execute cmd: logman stop \"" << KERNEL_LOGGER_NAME << "\" -ets\n";
 #endif
                 return EVENT_TRACING_WAS_LAUNCHED_BY_SOMEBODY_ELSE;
             }
 
             case ERROR_ACCESS_DENIED:
 #if EASY_OPTION_LOG_ENABLED != 0
-                ::std::cerr << "Error: EasyProfiler.ETW not launched: ERROR_ACCESS_DENIED. Try to launch your application as Administrator.\n";
+                EASY_ETW_LOG << "Error: EasyProfiler.ETW not launched: ERROR_ACCESS_DENIED. Try to launch your application as Administrator.\n";
 #endif
                 return EVENT_TRACING_NOT_ENOUGH_ACCESS_RIGHTS;
 
             case ERROR_BAD_LENGTH:
 #if EASY_OPTION_LOG_ENABLED != 0
-                ::std::cerr << "Error: EasyProfiler.ETW not launched: ERROR_BAD_LENGTH. It seems that your KERNEL_LOGGER_NAME differs from \"" << m_properties.sessionName << "\". Try to re-compile easy_profiler or contact EasyProfiler developers.\n";
+                EASY_ETW_LOG << "Error: EasyProfiler.ETW not launched: ERROR_BAD_LENGTH. It seems that your KERNEL_LOGGER_NAME differs from \"" << m_properties.sessionName << "\". Try to re-compile easy_profiler or contact EasyProfiler developers.\n";
 #endif
                 return EVENT_TRACING_BAD_PROPERTIES_SIZE;
         }
 
 #if EASY_OPTION_LOG_ENABLED != 0
-        ::std::cerr << "Error: EasyProfiler.ETW not launched: StartTrace() returned " << startTraceResult << ::std::endl;
+        EASY_ETW_LOG << "Error: EasyProfiler.ETW not launched: StartTrace() returned " << startTraceResult << ::std::endl;
 #endif
         return EVENT_TRACING_MISTERIOUS_ERROR;
     }
@@ -418,7 +421,7 @@ namespace profiler {
         if (m_openedHandle == INVALID_PROCESSTRACE_HANDLE)
         {
 #if EASY_OPTION_LOG_ENABLED != 0
-            ::std::cerr << "Error: EasyProfiler.ETW not launched: OpenTrace() returned invalid handle.\n";
+            EASY_ETW_LOG << "Error: EasyProfiler.ETW not launched: OpenTrace() returned invalid handle.\n";
 #endif
             return EVENT_TRACING_OPEN_TRACE_ERROR;
         }