diff -Naurp php-5.2.6/ext/imap/php_imap.c php-5.2.6.oden/ext/imap/php_imap.c
--- php-5.2.6/ext/imap/php_imap.c	2008-04-17 13:04:49.000000000 +0200
+++ php-5.2.6.oden/ext/imap/php_imap.c	2008-09-11 12:19:24.000000000 +0200
@@ -155,6 +155,10 @@ zend_function_entry imap_functions[] = {
 	PHP_FE(imap_setacl,								NULL)
 	PHP_FE(imap_getacl,								NULL)
 #endif
+#if defined(HAVE_IMAP2005)
+ 	PHP_FE(imap_setannotation,							NULL)
+ 	PHP_FE(imap_getannotation,							NULL)
+#endif
 
 	PHP_FE(imap_mail,								NULL)
 
@@ -416,6 +420,30 @@ void mail_getacl(MAILSTREAM *stream, cha
 #endif
 
 
+#if defined(HAVE_IMAP2005)
+/* {{{ mail_getannotation
+ *
+ * Mail GET_ANNOTATION callback
+ * Called via the mail_parameter function in c-client:src/c-client/mail.c
+ */
+void mail_getannotation(MAILSTREAM *stream, ANNOTATION *alist)
+{
+        ANNOTATION_VALUES *cur;
+        
+	TSRMLS_FETCH();
+
+	/* walk through the ANNOTATION_VALUES */
+        
+	for(cur = alist->values; cur; cur = cur->next) {
+	    if (cur->value)
+		add_assoc_stringl(IMAPG(imap_annotation_list), cur->attr, cur->value, strlen(cur->value), 1);
+	    else
+		add_assoc_stringl(IMAPG(imap_annotation_list), cur->attr, "", 0, 1);
+	}
+}
+/* }}} */
+#endif
+
 /* {{{ PHP_GINIT_FUNCTION
  */
 static PHP_GINIT_FUNCTION(imap)
@@ -1097,6 +1125,122 @@ PHP_FUNCTION(imap_getacl)
 
 #endif /* HAVE_IMAP2000 || HAVE_IMAP2001 */
 
+#if defined(HAVE_IMAP2005)
+
+/* {{{ proto bool imap_setannotation(resource stream_id, string mailbox, string entry, string attr, string value)
+	Sets an annotation for a given mailbox */
+PHP_FUNCTION(imap_setannotation)
+{
+	zval **streamind, **mailbox, **entry, **attr, **value;
+	pils *imap_le_struct;
+        long ret;
+	
+        // TODO: Use zend_parse_parameters here
+	if (ZEND_NUM_ARGS() != 5 || zend_get_parameters_ex(5, &streamind, &mailbox, &entry, &attr, &value) == FAILURE) {
+		ZEND_WRONG_PARAM_COUNT();
+	}
+
+	ZEND_FETCH_RESOURCE(imap_le_struct, pils *, streamind, -1, "imap", le_imap);
+
+	convert_to_string_ex(mailbox);
+	convert_to_string_ex(entry);
+	convert_to_string_ex(attr);
+	convert_to_string_ex(value);
+
+        // create annotation object
+        ANNOTATION *annotation = mail_newannotation();
+        if (!annotation)
+            RETURN_FALSE;
+        annotation->values = mail_newannotationvalue();
+        if (!annotation->values) {
+            mail_free_annotation(&annotation);
+            RETURN_FALSE;
+        }
+        
+        // fill in annotation values
+        annotation->mbox = Z_STRVAL_PP(mailbox);
+        annotation->entry = Z_STRVAL_PP(entry);
+        annotation->values->attr = Z_STRVAL_PP(attr);
+        annotation->values->value = Z_STRVAL_PP(value);
+        
+        ret = imap_setannotation(imap_le_struct->imap_stream, annotation);
+                
+        // make sure mail_free_annotation doesn't free our variables
+        annotation->mbox = NULL;
+        annotation->entry = NULL;
+        annotation->values->attr = NULL;
+        annotation->values->value = NULL;
+        mail_free_annotation(&annotation);
+        
+        RETURN_BOOL(ret);
+}
+/* }}} */
+
+/* {{{ proto array imap_getannotation(resource stream_id, string mailbox, string entry, string attr)
+	Gets the ACL for a given mailbox */
+PHP_FUNCTION(imap_getannotation)
+{
+	zval **streamind, **mailbox, **entry, **attr;
+	pils *imap_le_struct;
+        long ret;
+
+	if(ZEND_NUM_ARGS() != 4 || zend_get_parameters_ex(4, &streamind, &mailbox, &entry, &attr) == FAILURE) {
+		ZEND_WRONG_PARAM_COUNT();
+	}
+
+	ZEND_FETCH_RESOURCE(imap_le_struct, pils *, streamind, -1, "imap", le_imap);
+
+	convert_to_string_ex(mailbox);
+	convert_to_string_ex(entry);
+	convert_to_string_ex(attr);
+
+	/* initializing the special array for the return values */
+	if (array_init(return_value) == FAILURE) {
+		RETURN_FALSE;
+	}
+
+        // fillup calling parameters
+        STRINGLIST *entries = mail_newstringlist();
+        if (!entries)
+            RETURN_FALSE;
+        
+        STRINGLIST *cur = entries;
+        cur->text.data = (unsigned char *)cpystr(Z_STRVAL_PP(entry));
+        cur->text.size = Z_STRLEN_PP(entry);
+        cur->next = NIL;
+        
+        STRINGLIST *attributes = mail_newstringlist();
+        cur = attributes;
+        cur->text.data = (unsigned char *)cpystr (Z_STRVAL_PP(attr));
+        cur->text.size = Z_STRLEN_PP(attr);
+        cur->next = NIL;
+        
+	/* initializing the special array for the return values */
+	if (array_init(return_value) == FAILURE) {
+            mail_free_stringlist(&entries);
+            mail_free_stringlist(&attributes);
+            RETURN_FALSE;
+	}
+
+        IMAPG(imap_annotation_list) = return_value;
+        
+        /* set the callback for the GET_ANNOTATION function */
+	mail_parameters(NIL, SET_ANNOTATION, (void *) mail_getannotation);
+        ret = imap_getannotation(imap_le_struct->imap_stream, Z_STRVAL_PP(mailbox), entries, attributes);
+        
+        mail_free_stringlist(&entries);
+        mail_free_stringlist(&attributes);
+        
+        if (!ret) {
+            zval_dtor(return_value);
+            RETURN_FALSE;
+        }
+        
+	IMAPG(imap_annotation_list) = NIL;
+}
+/* }}} */
+
+#endif /* HAVE_IMAP2005 */
 
 /* {{{ proto bool imap_expunge(resource stream_id)
    Permanently delete all messages marked for deletion */
diff -Naurp php-5.2.6/ext/imap/php_imap.h php-5.2.6.oden/ext/imap/php_imap.h
--- php-5.2.6/ext/imap/php_imap.h	2007-12-31 08:20:07.000000000 +0100
+++ php-5.2.6.oden/ext/imap/php_imap.h	2008-09-11 12:19:24.000000000 +0200
@@ -168,6 +168,9 @@ PHP_FUNCTION(imap_mime_header_decode);
 PHP_FUNCTION(imap_thread);
 PHP_FUNCTION(imap_timeout);
 
+// TODO: Needs fixing in configure in
+#define HAVE_IMAP2005 1
+
 #if defined(HAVE_IMAP2000) || defined(HAVE_IMAP2001)
 PHP_FUNCTION(imap_get_quota);
 PHP_FUNCTION(imap_get_quotaroot);
@@ -175,7 +178,10 @@ PHP_FUNCTION(imap_set_quota);
 PHP_FUNCTION(imap_setacl);
 PHP_FUNCTION(imap_getacl);
 #endif
-
+#if defined(HAVE_IMAP2005)
+PHP_FUNCTION(imap_setannotation);
+PHP_FUNCTION(imap_getannotation);
+#endif
 
 ZEND_BEGIN_MODULE_GLOBALS(imap)
 	char *imap_user;
@@ -206,6 +212,9 @@ ZEND_BEGIN_MODULE_GLOBALS(imap)
 	zval **quota_return;
 	zval *imap_acl_list;
 #endif
+#if defined(HAVE_IMAP2005)
+        zval *imap_annotation_list;
+#endif
 	/* php_stream for php_mail_gets() */
 	php_stream *gets_stream;
 ZEND_END_MODULE_GLOBALS(imap)