diff --git a/src/app/app.cpp b/src/app/app.cpp
index d03fe77be..90caa59f6 100644
--- a/src/app/app.cpp
+++ b/src/app/app.cpp
@@ -146,6 +146,8 @@ App::App(int argc, const char* argv[])
 
   // Load RenderEngine configuration
   RenderEngine::loadConfig();
+  if (isPortable())
+    PRINTF("Running in portable mode\n");
 
   // Default palette.
   std::string palFile(!options.paletteFileName().empty() ?
@@ -339,6 +341,14 @@ App::~App()
   }
 }
 
+bool App::isPortable()
+{
+  std::string ini_file = get_config_file();
+  app::ResourceFinder rf;
+  rf.includeBinDir("aseprite.ini");
+  return (ini_file == rf.defaultFilename());
+}
+
 tools::ToolBox* App::getToolBox() const
 {
   ASSERT(m_modules != NULL);
diff --git a/src/app/app.h b/src/app/app.h
index d0afb0b80..1e4286b9e 100644
--- a/src/app/app.h
+++ b/src/app/app.h
@@ -65,6 +65,9 @@ namespace app {
     // Returns true if Aseprite is running with GUI available.
     bool isGui() const { return m_isGui; }
 
+    // Returns true if the application is running in portable mode.
+    bool isPortable();
+
     // Runs the Aseprite application. In GUI mode it's the top-level
     // window, in console/scripting it just runs the specified scripts.
     int run();
diff --git a/src/app/send_crash.cpp b/src/app/send_crash.cpp
index 9d178859d..a97de76dd 100644
--- a/src/app/send_crash.cpp
+++ b/src/app/send_crash.cpp
@@ -32,14 +32,29 @@
 
 namespace app {
 
-const char* SendCrash::kDefaultCrashName = "Aseprite-crash.dmp";
+static const char* kDefaultCrashName = "Aseprite-crash.dmp";
+
+std::string memory_dump_filename()
+{
+#ifdef WIN32
+
+  app::ResourceFinder rf;
+  if (App::instance()->isPortable())
+    rf.includeBinDir(kDefaultCrashName);
+  else
+    rf.includeHomeDir(kDefaultCrashName);
+
+  return rf.defaultFilename();
+
+#else
+  return "";
+#endif
+}
 
 void SendCrash::search()
 {
 #ifdef WIN32
-  app::ResourceFinder rf;
-  rf.includeHomeDir(kDefaultCrashName);
-  m_dumpFilename = rf.defaultFilename();
+  m_dumpFilename = memory_dump_filename();
 
   if (base::is_file(m_dumpFilename)) {
     App::instance()->showNotification(this);
diff --git a/src/app/send_crash.h b/src/app/send_crash.h
index 23a5224f9..e1ea8fae9 100644
--- a/src/app/send_crash.h
+++ b/src/app/send_crash.h
@@ -28,8 +28,6 @@ namespace app {
 
   class SendCrash : public INotificationDelegate {
   public:
-    static const char* kDefaultCrashName;
-
     void search();
 
     virtual std::string notificationText() override;
@@ -41,6 +39,8 @@ namespace app {
     std::string m_dumpFilename;
   };
 
+  std::string memory_dump_filename();
+
 } // namespace app
 
 #endif // APP_SEND_CRASH_H_INCLUDED
diff --git a/src/main/main.cpp b/src/main/main.cpp
index a819d8e41..66e87a3ce 100644
--- a/src/main/main.cpp
+++ b/src/main/main.cpp
@@ -53,17 +53,6 @@ namespace {
 #endif
   };
 
-  bool getMemoryDumpFilename(std::string& filename) {
-#ifdef WIN32
-    app::ResourceFinder rf;
-    rf.includeHomeDir(app::SendCrash::kDefaultCrashName);
-    filename = rf.defaultFilename();
-    return true;
-#else
-    return false;
-#endif
-  }
-
 }
 
 // Aseprite entry point. (Called from she library.)
@@ -85,8 +74,8 @@ int app_main(int argc, char* argv[])
 
     // Change the name of the memory dump file
     {
-      std::string filename;
-      if (getMemoryDumpFilename(filename))
+      std::string filename = app::memory_dump_filename();
+      if (!filename.empty())
         memoryDump.setFileName(filename);
     }