diff --git a/main/Sample-PostProc.cmd b/main/Sample-PostProc.cmd
index d073bc5..34a1b26 100644
--- a/main/Sample-PostProc.cmd
+++ b/main/Sample-PostProc.cmd
@@ -8,6 +8,7 @@ echo The first parameter (result-dir) = %1
 echo The second parameter (nzb-name)  = %2
 echo The third parameter (nice name)  = %3
 echo The fourth parameter (newzbin #) = %4
+echo The fifth parameter (newzbin-category) = %5
 echo.
 
 
diff --git a/main/Sample-PostProc.sh b/main/Sample-PostProc.sh
index 1ad5d70..c420b06 100644
--- a/main/Sample-PostProc.sh
+++ b/main/Sample-PostProc.sh
@@ -8,6 +8,7 @@ echo "The first parameter (result-dir)  =" $1
 echo "The second parameter (nzb-name)   =" $2
 echo "The third parameter (nice name)   =" $3
 echo "The fourth parameter (newzbin-id) =" $4
+echo "The fifth parameter (newzbin-category) =" $5
 echo
 
 
diff --git a/main/sabnzbd/__init__.py b/main/sabnzbd/__init__.py
index ad414e4..959a021 100644
--- a/main/sabnzbd/__init__.py
+++ b/main/sabnzbd/__init__.py
@@ -980,7 +980,7 @@ def getBookmarksList():
         return BOOKMARKS.bookmarksList()
 
 def delete_bookmark(msgid):
-    if BOOKMARKS:
+    if BOOKMARKS and NEWZBIN_BOOKMARKS and NEWZBIN_UNBOOKMARK:
         BOOKMARKS.del_bookmark(msgid)
 
 
diff --git a/main/sabnzbd/assembler.py b/main/sabnzbd/assembler.py
index f4b9b08..0db520d 100644
--- a/main/sabnzbd/assembler.py
+++ b/main/sabnzbd/assembler.py
@@ -204,14 +204,15 @@ class PostProcessor(Thread):
 
                 if result and scr and self.extern_proc:
                     logging.info('[%s] Running external script %s %s %s', __NAME__, self.extern_proc, workdir, filename)
-                    ext_out = external_processing(self.extern_proc, workdir, filename)
+                    ext_out = external_processing(self.extern_proc, workdir, filename, nzo.get_cat())
                 else:
                     ext_out = ""
+
                 if sabnzbd.EMAIL_ENDJOB:
                     email_endjob(filename, prepare_msg(nzo.get_bytes_downloaded(),nzo.get_unpackstrht(), ext_out))
-                if sabnzbd.NEWZBIN_UNBOOKMARK:
-                    name, msgid = SplitFileName(filename)
-                    sabnzbd.delete_bookmark(msgid)
+
+                name, msgid = SplitFileName(filename)
+                sabnzbd.delete_bookmark(msgid)
             except:
                 logging.exception("[%s] Postprocessing of %s failed.", __NAME__,
                                   nzo.get_filename())
diff --git a/main/sabnzbd/newsunpack.py b/main/sabnzbd/newsunpack.py
index 879251e..66f81b8 100644
--- a/main/sabnzbd/newsunpack.py
+++ b/main/sabnzbd/newsunpack.py
@@ -120,11 +120,11 @@ def find_programs(curdir):
 
 
 #------------------------------------------------------------------------------
-def external_processing(extern_proc, complete_dir, filename):
+def external_processing(extern_proc, complete_dir, filename, cat):
 
     name, msgid = SplitFileName(filename)
     command = ['%s' % extern_proc, '%s' % complete_dir, '%s' % filename, \
-               '%s' % name, '%s' % msgid]
+               '%s' % name, '%s' % msgid, '%s' % cat]
 
     stup, need_shell, command, creationflags = build_command(command)
 
diff --git a/main/sabnzbd/newzbin.py b/main/sabnzbd/newzbin.py
index 9d76287..8964a50 100644
--- a/main/sabnzbd/newzbin.py
+++ b/main/sabnzbd/newzbin.py
@@ -295,7 +295,8 @@ class Bookmarks:
         return self.bookmarks
 
     def del_bookmark(self, msgid):
-        self.run(msgid)
+        if msgid in self.bookmarks:
+            self.run(msgid)
 
 ################################################################################
 # 'Private' Methods                                                            #
diff --git a/main/sabnzbd/nzbstuff.py b/main/sabnzbd/nzbstuff.py
index b766021..ce710eb 100644
--- a/main/sabnzbd/nzbstuff.py
+++ b/main/sabnzbd/nzbstuff.py
@@ -294,7 +294,7 @@ class NzbObject(TryList):
         self.__delete = delete        # True if we want to delete this set
         self.__script = script        # True if we want to run external script on this set
         self.__msgid = '0'            # Newzbin msgid
-        self.__extra1 = 'a'           # Spare field for later
+        self.__extra1 = cat_root      # Newzbin category
         self.__extra2 = 'b'           # Spare field for later
         self.__group = None
         self.__avg_date = None
@@ -676,6 +676,13 @@ class NzbObject(TryList):
     def get_filename(self):
         return self.__filename
 
+    def get_cat(self):
+        if self.__extra1 == 'a':
+            # Compatibility with older queues
+            return ''
+        else:
+            return self.__extra1
+
     def get_group(self):
         return self.__group