diff --git a/Installation/Windows/Templates/arango-packer-template.nsi b/Installation/Windows/Templates/arango-packer-template.nsi
index ba12ff4feb..6ce531a94a 100644
--- a/Installation/Windows/Templates/arango-packer-template.nsi
+++ b/Installation/Windows/Templates/arango-packer-template.nsi
@@ -12,14 +12,14 @@
 ; !include "Library.nsh"
 
 ; The name of the installer
-Name ""@INSTALLERNAME@"
+Name "@INSTALLERNAME@"
 
 ; The file to write
 OutFile "@INSTALLERNAME@.exe"
 
 ; The default installation directory
 !define APPNAME "Unpacker"
-!define COMPANYNAME "Triagens"
+!define COMPANYNAME "ArangoDB"
 InstallDir $TEMP\${COMPANYNAME}\${APPNAME}
 
 
@@ -55,7 +55,7 @@ Section "" ;No components page, name is not important
   SetOutPath $INSTDIR
   ; Put file there
 ; !insertmacro InstallLib DLL SHARED NOREBOOT_PROTECTED "exdll.dll" $INSTDIR $TEMP
-	file "..\Installation\Windows\Plugins\SharedMemory\Plugins\@BITS@\msvcr120.dll"
+	file "@SRCDIR@\Installation\Windows\Plugins\SharedMemory\Plugins\@BITS@\msvcr120.dll"
 	file "@INSTALLERNAME@-internal.exe"
         Rename "$INSTDIR\Installation\Windows\Plugins\SharedMemory\Plugins\@BITS@\msvcr120.dll" "$INSTDIR\msvcr120.dll"
         Rename "$INSTDIR\Build@BITS@\@INSTALLERNAME@-internal.exe" "$INSTDIR\@INSTALLERNAME@-internal.exe"
diff --git a/Installation/Windows/installer-generator.sh b/Installation/Windows/installer-generator.sh
index 71d2561b04..d90104f525 100755
--- a/Installation/Windows/installer-generator.sh
+++ b/Installation/Windows/installer-generator.sh
@@ -4,13 +4,22 @@ NSIS_PATH="/cygdrive/c/Program Files (x86)/NSIS"
 #shell parameter:
 #1 the bits (64 or 32)
 #2 the parent directory which contains the Build64 or Build32 directory
-cd $2
+BUILD=$2
 bits=$1
-INSTALLERNAME=`grep CPACK_PACKAGE_FILE_NAME Build$bits/CPackConfig.cmake | grep -o '".*"' | awk -F\" '{print $2}'`
-if [ ! -f Build$bits/$INSTALLERNAME-internal.exe ]; then
-  cp Build$bits/$INSTALLERNAME.exe Build$bits/$INSTALLERNAME-internal.exe 
+
+# Yo windows we like year backslash paths.
+WD=`pwd`
+SRCPATH=`cygpath -w ${WD}|sed "s;\\\\\;\\\\\\\\\\\\\;g"`
+
+INSTALLERNAME=`grep CPACK_PACKAGE_FILE_NAME ${BUILD}/CPackConfig.cmake | grep -o '".*"' | awk -F\" '{print $2}'`
+
+if [ ! -f ${BUILD}/$INSTALLERNAME-internal.exe ]; then
+  cp ${BUILD}/$INSTALLERNAME.exe ${BUILD}/$INSTALLERNAME-internal.exe 
 fi
-cat Installation/Windows/Templates/arango-packer-template.nsi | sed -e "s/@BITS@/$bits/g" | sed -e  "s/@INSTALLERNAME@/${INSTALLERNAME}/g" > Build$bits/$INSTALLERNAME.nsi
+cat Installation/Windows/Templates/arango-packer-template.nsi | \
+    sed -e "s;@BITS@;$bits;g" \
+        -e  "s;@INSTALLERNAME@;${INSTALLERNAME};" \
+        -e "s;@SRCDIR@;${SRCPATH};g" > ${BUILD}/$INSTALLERNAME.nsi
 
-"$NSIS_PATH"/makensis.exe   Build$bits/$INSTALLERNAME.nsi
+"$NSIS_PATH"/makensis.exe ${BUILD}\\$INSTALLERNAME.nsi
 
diff --git a/arangod/VocBase/replication-dump.cpp b/arangod/VocBase/replication-dump.cpp
index 5434bd627a..7bae873e40 100644
--- a/arangod/VocBase/replication-dump.cpp
+++ b/arangod/VocBase/replication-dump.cpp
@@ -439,9 +439,9 @@ static int DumpCollection(TRI_replication_dump_t* dump,
 
     // we are reading from a journal that might be modified in parallel
     // so we must read-lock it
-    if (e._isJournal) {
-      TRI_READ_LOCK_DOCUMENTS_INDEXES_PRIMARY_COLLECTION(document);
-    } else {
+    CONDITIONAL_READ_LOCKER(readLocker, document->_filesLock, e._isJournal); 
+
+    if (!e._isJournal) {
       TRI_ASSERT(datafile->_isSealed);
     }
 
@@ -530,11 +530,6 @@ static int DumpCollection(TRI_replication_dump_t* dump,
     }
 
   NEXT_DF:
-    if (e._isJournal) {
-      // read-unlock the journal
-      TRI_READ_UNLOCK_DOCUMENTS_INDEXES_PRIMARY_COLLECTION(document);
-    }
-
     if (res != TRI_ERROR_NO_ERROR || !hasMore || bufferFull) {
       break;
     }
diff --git a/lib/Basics/ReadLocker.h b/lib/Basics/ReadLocker.h
index 054e6a84be..3310c25d1c 100644
--- a/lib/Basics/ReadLocker.h
+++ b/lib/Basics/ReadLocker.h
@@ -58,6 +58,8 @@
 
 #define TRY_READ_LOCKER(obj, lock) arangodb::basics::TryReadLocker obj(&lock)
 
+#define CONDITIONAL_READ_LOCKER(obj, lock, condition) arangodb::basics::ConditionalReadLocker obj(&lock, (condition))
+
 namespace arangodb {
 namespace basics {
 
@@ -74,7 +76,7 @@ class ReadLocker {
 
  public:
 ////////////////////////////////////////////////////////////////////////////////
-/// @brief aquires a read-lock
+/// @brief acquires a read-lock
 ///
 /// The constructors read-locks the lock, the destructors unlocks the lock.
 ////////////////////////////////////////////////////////////////////////////////
@@ -98,7 +100,7 @@ class ReadLocker {
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
-/// @brief aquires a read-lock, with periodic sleeps while not acquired
+/// @brief acquires a read-lock, with periodic sleeps while not acquired
 /// sleep time is specified in nanoseconds
 ////////////////////////////////////////////////////////////////////////////////
 
@@ -183,9 +185,9 @@ class TryReadLocker {
 
  public:
   ////////////////////////////////////////////////////////////////////////////////
-  /// @brief tries to aquire a read-lock
+  /// @brief tries to acquire a read-lock
   ///
-  /// The constructors tries to read-lock the lock, the destructors unlocks the
+  /// The constructor tries to read-lock the lock, the destructors unlocks the
   /// lock if it was acquired in the constructor
   ////////////////////////////////////////////////////////////////////////////////
 
@@ -236,6 +238,69 @@ class TryReadLocker {
 
   bool _isLocked;
 };
+
+class ConditionalReadLocker {
+  ConditionalReadLocker(ConditionalReadLocker const&) = delete;
+  ConditionalReadLocker& operator=(ConditionalReadLocker const&) = delete;
+
+ public:
+  ////////////////////////////////////////////////////////////////////////////////
+  /// @brief acquire a read-lock
+  ///
+  /// The constructor tries to read-lock the lock, the destructors unlocks the
+  /// lock if it was acquired in the constructor
+  ////////////////////////////////////////////////////////////////////////////////
+
+  ConditionalReadLocker(ReadWriteLock* readWriteLock, bool condition)
+      : _readWriteLock(readWriteLock), _isLocked(false) {
+    if (condition) {
+      _readWriteLock->readLock();
+      _isLocked = true;
+    }
+  }
+
+  //////////////////////////////////////////////////////////////////////////////
+  /// @brief releases the read-lock
+  //////////////////////////////////////////////////////////////////////////////
+
+  ~ConditionalReadLocker() {
+    if (_isLocked) {
+      _readWriteLock->unlock();
+    }
+  }
+
+  //////////////////////////////////////////////////////////////////////////////
+  /// @brief whether or not we acquired the lock
+  //////////////////////////////////////////////////////////////////////////////
+
+  bool isLocked() const { return _isLocked; }
+  
+  //////////////////////////////////////////////////////////////////////////////
+  /// @brief unlocks the read-write lock
+  //////////////////////////////////////////////////////////////////////////////
+
+  bool unlock() {
+    if (_isLocked) {
+      _readWriteLock->unlock();
+      _isLocked = false;
+      return true;
+    }
+    return false;
+  }
+
+ private:
+  //////////////////////////////////////////////////////////////////////////////
+  /// @brief the read-write lock
+  //////////////////////////////////////////////////////////////////////////////
+
+  ReadWriteLock* _readWriteLock;
+
+  //////////////////////////////////////////////////////////////////////////////
+  /// @brief whether or not we acquired the lock
+  //////////////////////////////////////////////////////////////////////////////
+
+  bool _isLocked;
+};
 }
 }