diff --git a/vimfiles.stefan/ftdetect/srec.vim b/vimfiles.stefan/ftdetect/srec.vim
new file mode 100644
index 0000000..511205c
--- /dev/null
+++ b/vimfiles.stefan/ftdetect/srec.vim
@@ -0,0 +1 @@
+autocmd BufRead,BufNewFile *.srec setlocal filetype=srec
diff --git a/vimfiles.stefan/plugin/vimsuite.vim b/vimfiles.stefan/plugin/vimsuite.vim
index a506470..0579018 100644
--- a/vimfiles.stefan/plugin/vimsuite.vim
+++ b/vimfiles.stefan/plugin/vimsuite.vim
@@ -154,16 +154,21 @@ function s:SetProject(projectfile)
         call s:EvalProjectVariables()
     endif
 
-    if exists('g:sessionfile')
-        " Vim-Session load
-        try
-            execute 'source' g:sessionfile
-        catch /^Vim\%((\a\+)\)\=:E484/ " file not found
-        catch " other error
-            echom 'Fehler in' g:sessionfile ':' v:exception
-        endtry
-        " Vim-Session autowrite
-        autocmd VimLeavePre * execute 'mksession!' g:sessionfile
+    if exists('g:did_load_sessionfile')
+        echom 'Sessionfile not loaded again'
+    else
+        let g:did_load_sessionfile=1
+        if exists('g:sessionfile')
+            " Vim-Session load
+            try
+                execute 'source' g:sessionfile
+            catch /^Vim\%((\a\+)\)\=:E484/ " file not found
+            catch " other error
+                echom 'Fehler in' g:sessionfile ':' v:exception
+            endtry
+            " Vim-Session autowrite
+            autocmd VimLeavePre * execute 'mksession!' g:sessionfile
+        endif
     endif
 
 endfunction
diff --git a/vimfiles.stefan/syntax/a2l.vim b/vimfiles.stefan/syntax/a2l.vim
index 0335803..5d2101d 100644
--- a/vimfiles.stefan/syntax/a2l.vim
+++ b/vimfiles.stefan/syntax/a2l.vim
@@ -21,6 +21,7 @@ syn keyword attribute SYSTEM_CONSTANT
 syn keyword attribute BYTE_ORDER ALIGNMENT_BYTE ALIGNMENT_WORD ALIGNMENT_LONG ALIGNMENT_FLOAT32_IEEE
 syn keyword attribute FORMAT DEPOSIT AXIS_PTS_REF BIT_MASK ECU_ADDRESS ARRAY_SIZE
 syn keyword attribute COEFFS FNC_VALUES NO_AXIS_PTS_X NO_AXIS_PTS_Y AXIS_PTS_X AXIS_PTS_Y
+syn keyword attribute REF_MEMORY_SEGMENT
 
 
 " Define the default highlighting.