diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,17 @@
   Xml
 )
 
+# determine kf5 version is at least 5.23
+find_package(KF5 5.23 QUIET COMPONENTS
+  KIO
+)
+if(KF5_FOUND)
+  set(KRARC_QUERY_ENABLED TRUE)
+  add_definitions( "-DKRARC_QUERY_ENABLED" )
+else(KF5_FOUND)
+  set(KRARC_QUERY_ENABLED FALSE)
+endif(KF5_FOUND)
+
 find_package(KF5 REQUIRED COMPONENTS
   Archive
   Bookmarks
diff --git a/krusader/Konfigurator/kgprotocols.h b/krusader/Konfigurator/kgprotocols.h
--- a/krusader/Konfigurator/kgprotocols.h
+++ b/krusader/Konfigurator/kgprotocols.h
@@ -78,11 +78,6 @@
     QPushButton *btnRemoveProtocol;
     QPushButton *btnAddMime;
     QPushButton *btnRemoveMime;
-
-    static QString defaultProtocols;
-    static QString defaultIsoMimes;
-    static QString defaultKrarcMimes;
-    static QString defaultTarMimes;
 };
 
 #endif /* __KgProtocols_H__ */
diff --git a/krusader/Konfigurator/kgprotocols.cpp b/krusader/Konfigurator/kgprotocols.cpp
--- a/krusader/Konfigurator/kgprotocols.cpp
+++ b/krusader/Konfigurator/kgprotocols.cpp
@@ -45,9 +45,6 @@
 #include <KIOCore/KProtocolManager>
 #include <KIconThemes/KIconLoader>
 
-QString KgProtocols::defaultProtocols  = "krarc";
-QString KgProtocols::defaultKrarcMimes = "application/zip";
-
 KgProtocols::KgProtocols(bool first, QWidget* parent) :
         KonfiguratorPage(first, parent)
 {
@@ -331,14 +328,6 @@
     while (linkList->topLevelItemCount() != 0)
         removeProtocol(linkList->topLevelItem(0)->text(0));
 
-#ifdef KRARC_ENABLED
-    addProtocol("krarc");
-    QStringList krarcMimes = defaultKrarcMimes.split(',');
-    foreach(const QString &mime, krarcMimes) {
-        addMime(mime, "krarc");
-    }
-#endif
-
     slotDisableButtons();
 
     if (isChanged())
@@ -406,9 +395,4 @@
 
 void KgProtocols::init()
 {
-    if (!krConfig->groupList().contains("Protocols")) {
-        KConfigGroup group(krConfig, "Protocols");
-        group.writeEntry("Handled Protocols", defaultProtocols);
-        group.writeEntry("Mimes For krarc",   defaultKrarcMimes);
-    }
 }
diff --git a/krusader/krservices.h b/krusader/krservices.h
--- a/krusader/krservices.h
+++ b/krusader/krservices.h
@@ -55,6 +55,7 @@
 
 private:
     static QMap<QString, QString>* slaveMap;
+    static QSet<QString> krarcArchiveMimetypes;
 
 };
 
diff --git a/krusader/krservices.cpp b/krusader/krservices.cpp
--- a/krusader/krservices.cpp
+++ b/krusader/krservices.cpp
@@ -30,6 +30,11 @@
 #include "defaults.h"
 
 QMap<QString, QString>* KrServices::slaveMap = 0;
+#ifdef KRARC_QUERY_ENABLED
+QSet<QString> KrServices::krarcArchiveMimetypes = QSet<QString>::fromList(KProtocolInfo::archiveMimetypes("krarc"));
+#else
+QSet<QString> KrServices::krarcArchiveMimetypes;
+#endif
 
 bool KrServices::cmdExist(QString cmdName)
 {
@@ -92,7 +97,10 @@
         }
     }
     QString protocol = (*slaveMap)[mimetype];
-    if(protocol.isEmpty()) {
+    if (protocol.isEmpty()) {
+        if (krarcArchiveMimetypes.contains(mimetype)) {
+            return "krarc";
+        }
         protocol = KProtocolManager::protocolForArchiveMimetype(mimetype);
     }
     return protocol;