diff --git a/src/webim/libs/chat.php b/src/webim/libs/chat.php
index ccc706b6..ac1b3330 100644
--- a/src/webim/libs/chat.php
+++ b/src/webim/libs/chat.php
@@ -15,7 +15,8 @@
 
 $connection_timeout = 30; // sec
 
-$namecookie = "WEBIM_Name";
+$simplenamecookie = "WEBIM_Name";   // 1.0.8 and earlier
+$namecookie = "WEBIM_Data";   // 1.0.9+
 
 $state_queue = 0;
 $state_waiting = 1;
@@ -447,8 +448,16 @@ function check_for_reassign($thread,$operator) {
 }
 
 function visitor_from_request() {
-	global $namecookie;
-	$userName = isset($_COOKIE[$namecookie]) ? $_COOKIE[$namecookie] : getstring("chat.default.username");
+	global $namecookie, $simplenamecookie, $compatibility_encoding, $webim_encoding;
+	$userName = getstring("chat.default.username");
+	if( isset($_COOKIE[$namecookie]) ) {
+		$data = base64_decode(strtr($_COOKIE[$namecookie],'-_,', '+/='));
+		if( strlen($data) > 0 ) {
+			$userName = myiconv("utf-8",$webim_encoding,$data);
+		}
+	} else if( isset($_COOKIE[$simplenamecookie]) && isset($compatibility_encoding) ) {
+		$userName = myiconv($compatibility_encoding,$webim_encoding,$_COOKIE[$simplenamecookie]);
+	}
 
 	return array( 'name' => $userName );
 }
diff --git a/src/webim/libs/config.php b/src/webim/libs/config.php
index 7b2a9db3..05cc69a4 100644
--- a/src/webim/libs/config.php
+++ b/src/webim/libs/config.php
@@ -29,19 +29,17 @@ $mysqlpass = "123";
  *  Localization parameters
  */
 
-
-/* Use CP-1251 database */
-/*
-$dbencoding = "cp1251";
-$webim_encoding = "cp1251";
-$force_charset_in_connection = true;
-*/
-
 /* Use UTF-8 database */
 $dbencoding = "utf8";
 $webim_encoding = "utf-8";
 $force_charset_in_connection = true;
 
+/*
+ * Web Messenger 1.0.8 an earlier stored user name in cookie in "webim_encoding". If
+ * you used this versions of webim set your previous encoding here.
+ */
+$compatibility_encoding = "cp1251";
+
 /*
  *   From field in outgoing mail.
  */
diff --git a/src/webim/operator/update.php b/src/webim/operator/update.php
index b39107e7..ee5cec36 100644
--- a/src/webim/operator/update.php
+++ b/src/webim/operator/update.php
@@ -44,7 +44,7 @@ function thread_to_xml($thread) {
 	if( $state == "closed" )
 		return $result."/>";
 
-	$state = myiconv($webim_encoding,"utf-8",getstring($threadstate_key[$thread['istate']]));
+	$state = getstring($threadstate_key[$thread['istate']]);
 	$threadoperator = ($thread['agentName'] ? $thread['agentName'] : "-");
 
 	$result .= " canopen=\"true\"";
@@ -97,4 +97,4 @@ print_pending_threads($since);
 notify_operator_alive($operator['operatorid']);
 exit;
 
-?>
\ No newline at end of file
+?>
diff --git a/src/webim/thread.php b/src/webim/thread.php
index eb70aa99..fd7917fa 100644
--- a/src/webim/thread.php
+++ b/src/webim/thread.php
@@ -65,7 +65,8 @@ if( $act == "refresh" ) {
 	$newname = getrawparam('name');
 
 	rename_user($thread, $newname);
-	setcookie($namecookie, $newname, time()+60*60*24*365); 
+	$data = strtr(base64_encode(myiconv($webim_encoding,"utf-8",$newname)), '+/=', '-_,');
+	setcookie($namecookie, $data, time()+60*60*24*365); 
 	start_xml_output();
 	echo "<changedname></changedname>";
 	exit;
@@ -88,4 +89,4 @@ if( $act == "refresh" ) {
 
 }
 
-?>
\ No newline at end of file
+?>