diff --git a/scheme/browse-directory-list.scm b/scheme/browse-directory-list.scm
index 3ab4774..c447933 100644
--- a/scheme/browse-directory-list.scm
+++ b/scheme/browse-directory-list.scm
@@ -335,6 +335,6 @@
   (and (proper-list? thing)
        (every fs-object? thing)))
 
-(register-plugin! (make-plugin "ls"
-			       browse-dir-list-receiver
-			       list-of-fs-objects?))
+(register-plugin! 
+ (make-view-plugin browse-dir-list-receiver
+		   list-of-fs-objects?))
diff --git a/scheme/browse-list.scm b/scheme/browse-list.scm
index f5c70cf..35a6704 100644
--- a/scheme/browse-list.scm
+++ b/scheme/browse-list.scm
@@ -336,4 +336,4 @@
 
 )))
 
-(register-plugin! (make-plugin "browse-list" browse-list-receiver))
+;(register-plugin! (make-plugin "browse-list" browse-list-receiver))
diff --git a/scheme/directory-files.scm b/scheme/directory-files.scm
index 837084b..ae9ba75 100644
--- a/scheme/directory-files.scm
+++ b/scheme/directory-files.scm
@@ -61,8 +61,8 @@
 	(browse-dir-list-receiver browse-sel-message)))
       )))
 
-(register-plugin!
- (make-plugin "directory-files"  dir-files-receiver))
+;(register-plugin!
+; (make-plugin "directory-files"  dir-files-receiver))
 	   
-(register-plugin!
- (make-plugin "ls" dir-files-receiver))
+; (register-plugin!
+;  (make-plugin "ls" dir-files-receiver))
diff --git a/scheme/nuit-engine.scm b/scheme/nuit-engine.scm
index 60f8777..61160c6 100644
--- a/scheme/nuit-engine.scm
+++ b/scheme/nuit-engine.scm
@@ -444,10 +444,10 @@
 	    plugin)))
      (else 
       (values 
-       (post-message standard-plugin
+       (post-message standard-view-plugin
 		     (make-next-command-message
 		      command '() (buffer-num-cols command-buffer)))
-       standard-plugin)))))
+       standard-view-plugin)))))
 
 ;;Extracts the name of the function and its parameters
 (define extract-com-and-par
@@ -530,18 +530,17 @@
        (eval (read-sexp-from-string exp) env)))))
 
 (define (post-message plugin message)
-  ((plugin-fun plugin) message))
-
-(define (determine-plugin-by-command command)
-  (or (find (lambda (r)
-	      (string=? (plugin-command r) command))
-	    (plugin-list))
-      standard-plugin))
+  (cond
+   ((view-plugin? plugin)
+    ((view-plugin-fun plugin) message))
+   (else 
+    (error "don't know how to talk to this plugin type"
+	   plugin))))
 
 (define (determine-plugin-by-type result)
   (find (lambda (r)
-	  ((plugin-type-predicate r) result))
-	(plugin-list)))
+	  ((view-plugin-type-predicate r) result))
+	(view-plugin-list)))
   
 ;;Management of the upper buffer
 ;;add a char to the buffer
@@ -603,12 +602,6 @@
 		       (history-entry-command (entry-data entry)) width)))))
     (wrefresh win)))
 
-(define (post-print-message command result-object)
-  (post-message
-   (determine-plugin-by-command command)
-   (make-print-message command result-object
-		       (buffer-num-cols command-buffer))))
-
 (define (paint-result-buffer print-object)
   (let* ((window (app-window-curses-win result-window))
 	 (text (print-object-text print-object))
@@ -788,6 +781,7 @@
    ((selection-message? message)
     "")))
 
-(define standard-plugin
-  (make-plugin #f standard-receiver-rec))
+(define standard-view-plugin
+  (make-view-plugin standard-receiver-rec 
+		    (lambda (val) #t)))
 
diff --git a/scheme/nuit-packages.scm b/scheme/nuit-packages.scm
index f7277f0..6946b87 100644
--- a/scheme/nuit-packages.scm
+++ b/scheme/nuit-packages.scm
@@ -101,11 +101,17 @@
 ;;; nuit plug-in registration
 
 (define-interface plugin-interface
-  (export make-plugin
-	  plugin?
-	  plugin-command
-	  plugin-fun
-	  plugin-type-predicate
+  (export make-view-plugin
+	  view-plugin?
+	  view-plugin-fun
+	  view-plugin-type-predicate
+
+	  make-command-plugin
+	  command-plugin?
+	  command-plugin-command
+	  command-plugin-completer
+	  command-plugin-evaluater
+
 	  register-plugin!
 
 	  make-print-object
@@ -147,7 +153,8 @@
 	  message-command-string))
 
 (define-interface plugin-host-interface
-  (export plugin-list
+  (export command-plugin-list
+	  view-plugin-list
 	  make-next-command-message
 	  make-init-with-result-message
 	  make-key-pressed-message
diff --git a/scheme/plugins.scm b/scheme/plugins.scm
index fef9b87..9f16490 100644
--- a/scheme/plugins.scm
+++ b/scheme/plugins.scm
@@ -1,26 +1,33 @@
-(define *plugins* '())
+(define *command-plugins* '())
 
-(define (plugin-list)
-  *plugins*)
+(define *view-plugins* '())
 
-(define-record-type plugin :plugin
-  (really-make-plugin command fun type-predicate)
-  plugin?
-  (command plugin-command)
-  (fun plugin-fun)
-  (type-predicate plugin-type-predicate))
+(define (command-plugin-list)
+  *command-plugins*)
 
-(define-record-discloser :plugin
-  (lambda (r)
-    `(plugin ,(plugin-command r) ,(plugin-fun r))))
+(define (view-plugin-list)
+  *view-plugins*)
 
-(define (make-plugin command fun . more)
-  (let-optionals more
-      ((type-predicate (lambda (v) #f)))
-    (really-make-plugin command fun type-predicate)))
+(define-record-type view-plugin :view-plugin
+  (make-view-plugin fun type-predicate)
+  view-plugin?
+  (fun view-plugin-fun)
+  (type-predicate view-plugin-type-predicate))
+
+(define-record-type command-plugin :command-plugin
+  (make-command-plugin command completer evaluater)
+  command-plugin?
+  (command command-plugin-command)
+  (completer command-plugin-completer)
+  (evaluater command-plugin-evaluater))
 
 (define (register-plugin! plugin)
-  (set! *plugins* (cons plugin *plugins*)))
+  (cond
+   ((command-plugin? plugin)
+    (set! *command-plugins* (cons plugin *command-plugins*)))
+   ((view-plugin? plugin)
+    (set! *view-plugins* (cons plugin *view-plugins*)))
+   (error "unknown plugin type" plugin)))
 
 ;; answers
 
diff --git a/scheme/process.scm b/scheme/process.scm
index 589d69f..e91d6a6 100644
--- a/scheme/process.scm
+++ b/scheme/process.scm
@@ -36,4 +36,4 @@
     "'()")))
 
 (register-plugin! 
- (make-plugin "ps" pps-receiver list-of-processes?))
+ (make-view-plugin pps-receiver list-of-processes?))