Download this free utility by clicking below link:
.Net Framwork 2.0 or +
Only for SQL Server 2005+
Developed using VB .Net
This is an executable file that is available in zip formate at above link.
You can view all logins sessions and their running requests on an instance by providing SQL Server instance name or IP Address and can filter them by database by getting all db name or providing db name by writing in combo box.