diff --git a/thumbnail/icoutils.h b/thumbnail/icoutils.h
--- a/thumbnail/icoutils.h
+++ b/thumbnail/icoutils.h
@@ -29,7 +29,7 @@
 
     bool loadIcoImageFromExe(QIODevice * inputDevice, QImage &image, int needWidth=512, int needHeight=512, const qint32 iconNumber=0);
     bool loadIcoImageFromExe(const QString &inputPath, QImage &image, int needWidth=512, int needHeight=512, const qint32 iconNumber=0);
-    bool loadIcoImageFromExe(const QString &inputFileName, const QString &outputFileName, const qint32 iconNumber);
+    bool loadIcoImageFromExe(const QString &inputFileName, QIODevice *outputDevice, const qint32 iconNumber);
 
     bool loadIcoImage(QIODevice * inputDevice, QImage &image, int needWidth=512, int needHeight=512);
     bool loadIcoImage(const QString &inputFileName, QImage &image, int needWidth=512, int needHeight=512);
diff --git a/thumbnail/icoutils_common.cpp b/thumbnail/icoutils_common.cpp
--- a/thumbnail/icoutils_common.cpp
+++ b/thumbnail/icoutils_common.cpp
@@ -15,6 +15,7 @@
 
 #include "icoutils.h"
 
+#include <QBuffer>
 #include <QList>
 #include <QString>
 #include <QTemporaryFile>
@@ -63,17 +64,19 @@
 
 bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, QImage &image, int needWidth, int needHeight, const qint32 iconNumber)
 {
-
-    QTemporaryFile outputFile;
-
-    if ( ! outputFile.open() )
+    QBuffer iconData;
+    if (!iconData.open(QIODevice::ReadWrite)) {
         return false;
+    }
 
-    if ( ! IcoUtils::loadIcoImageFromExe(inputFileName, outputFile.fileName(), iconNumber) )
+    if ( ! IcoUtils::loadIcoImageFromExe(inputFileName, &iconData, iconNumber) )
          return false;
 
-    return IcoUtils::loadIcoImage(outputFile.fileName(), image, needWidth, needHeight);
+    if (!iconData.seek(0)) {
+        return false;
+    }
 
+    return IcoUtils::loadIcoImage(&iconData, image, needWidth, needHeight);
 }
 
 bool IcoUtils::loadIcoImage(QImageReader &reader, QImage &image, int needWidth, int needHeight)
diff --git a/thumbnail/icoutils_win.cpp b/thumbnail/icoutils_win.cpp
--- a/thumbnail/icoutils_win.cpp
+++ b/thumbnail/icoutils_win.cpp
@@ -91,7 +91,7 @@
     return TRUE;
 }
 
-bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, const QString &outputFileName, const qint32 iconNumber)
+bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, QIODevice *outputDevice, const qint32 iconNumber)
 {
 
     HMODULE hModule;
@@ -183,12 +183,10 @@
             imageOffset += resourceSize;
         }
 
-        QFile outFile(outputFileName);
-        outFile.open(QIODevice::WriteOnly);
-        outFile.write(outBuffer.data());
+        const bool ok = (outputDevice->write(outBuffer.data()) == outBuffer.size());
 
         FreeLibrary( hModule );
-        return true;
+        return ok;
     }
 
     FreeLibrary( hModule );
diff --git a/thumbnail/icoutils_wrestool.cpp b/thumbnail/icoutils_wrestool.cpp
--- a/thumbnail/icoutils_wrestool.cpp
+++ b/thumbnail/icoutils_wrestool.cpp
@@ -27,7 +27,7 @@
 #define abs(n) ( ( n < 0 ) ? -n : n )
 typedef QPair < QString, int > IconInExe;
 
-bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, const QString &outputFileName, const qint32 iconNumber)
+bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, QIODevice *outputDevice, const qint32 iconNumber)
 {
 
     QProcess wrestool;
@@ -76,14 +76,20 @@
         if ( name.at(0) == '\'' )
             name = name.mid(1, name.size()-2);
 
-        QFile(outputFileName).resize(0);
-
-        wrestool.start("wrestool", QStringList() << "-x" << "-t" << QString::number(type) << "-n" << name << inputFileName << "-o" << outputFileName);
+        wrestool.start("wrestool", QStringList() << "-x" << "-t" << QString::number(type) << "-n" << name << inputFileName);
         wrestool.waitForFinished();
 
-        if ( wrestool.exitCode() == 0 && QFile(outputFileName).size() != 0 )
-            return true;
+        if (wrestool.exitCode() != 0) {
+            return false;
+        }
+
+        const QByteArray iconData = wrestool.readAllStandardOutput();
+
+        if (outputDevice->write(iconData) != iconData.size()) {
+            return false;
+        }
 
+        return true;
     }
 
     return false;