diff --git a/process/Bulkmail_lib/process.js b/process/Bulkmail_lib/process.js
index 6e7bd8c181d526bde88f611a6c960f26011858be..d469b91123d80f2aaf84b8da2568cd53cd605e24 100644
--- a/process/Bulkmail_lib/process.js
+++ b/process/Bulkmail_lib/process.js
@@ -32,12 +32,13 @@ BulkMailUtils.sendBulkMailOnServer = function (pBulkMailId, pTestRecipients, pUs
 {
     if (pUser === undefined)
         pUser = EmployeeUtils.getCurrentUserId();
-    process.execute("sendBulkMail_serverProcess", 
+    process.executeAsync("sendBulkMail_serverProcess", 
         {
             bulkMailId : pBulkMailId,
             testRecipients : JSON.stringify(pTestRecipients),
             user : pUser || ""
         }
+        , false, pUser, process.THREADPRIORITY_NORM, process.TIMERTYPE_SERVER
     );
 }
 
@@ -394,10 +395,11 @@ SerialLetterUtils.openAddRecipientView = function (pContactIds)
  */
 SerialLetterUtils.buildSerialLetter = function (pSerialLetterId, pRecipientIds)
 {
-    process.execute("buildSerialLetter_serverProcess", {
+    process.executeAsync("buildSerialLetter_serverProcess", {
         "serialLetterId" : pSerialLetterId,
         "recipientIds" : JSON.stringify(pRecipientIds)
-    });
+       }
+       , false, pUser, process.THREADPRIORITY_NORM, process.TIMERTYPE_SERVER );
 }
 
 /**