Hi,
Please refer below site for more info.

http://www.karaszi.com/SQLServer/default.asp

Thanks
Ajay
 you can't delete these files.
 the transaction log is truncated when you do a backup.
 or you can truncate it:
 http://www.codeproject.com/useritems/truncate_log_SQL_server.asp
 http://support.microsoft.com/kb/873235
 http://sqlserver2000.databases.aspfaq.com/how-do-i-reclaim-space-in-sql-server.html

 here a description of what is the log file:
 http://www.databasedesign-resource.com/sql-server-transaction-log.html

 and finally the best newsgroup is:
 sqlserver.server

   "Allan M. Grafil" <agrafil@hotmail.com> wrote in message news:unLkq6wBIHA.4836@TK2MSFTNGP06.phx.gbl...
   Hi guys,

   I dont know if im in the right group.  My scenario is like this.  Transaction logs are eating up my server's hard drive. Almost 60% of my space is transaction log.  What are these? Can I simply delete it? Can I compress this?  Can someone explain this log file.

   Thank you in advance.

   Allan M. Grafil

Backup the logs and free some space up.

MC

 You can also create a process that uses the DBCC commands to periodically (run it as a job) check the transaction log file sizes and, if past a pre-determined threshhold automatically do a back up or just the truncate by itself to free up space.  This will also prevent the database from going down because the transaction log file is full

 Sincerely,
 John K
 Knowledgy Consulting
 http://knowledgy.org/

 Atlanta's Business Intelligence and Data Warehouse Experts

   "Allan M. Grafil" <agrafil@hotmail.com> wrote in message news:unLkq6wBIHA.4836@TK2MSFTNGP06.phx.gbl...
   Hi guys,

   I dont know if im in the right group.  My scenario is like this.  Transaction logs are eating up my server's hard drive. Almost 60% of my space is transaction log.  What are these? Can I simply delete it? Can I compress this?  Can someone explain this log file.

   Thank you in advance.

   Allan M. Grafil