While login with Administrator User ID i'm getting error in Event Viwer, it showing "Unable to complete the operation an application access is denied ID no. c0070005 Access Denied ID no. c0050007 MS Exchange System Manager. While enter in System Manager it showing error, it is mentioned above. How to Increase the MS Exchange 2003 SP2 Datasize limit upto 75 GB. Our organization has cross the limit upto 22 GB. Current Database size in regedit is showing 23 GB. Because of crossing theDatabase sizelimit upto 23 GB is this thewarning message are sending by MS Exchange... Regards Deepak Bijlani

Hi Deepak, Here is the procedure to increase the DB size in Exchange 2003 SP2 standard edition. For a mailbox store, click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\Server name\Private-Mailbox Store GUID For a public folder store, click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\Server name\Public-Public Store GUID Create a New DWORD Value -> Rename it to Database Size Limit in Gb -> Right-click on it & click Modify -> Click Decimal and type between 1 to 75 as you required. You need to restart the MS Exchange Information Store service after doing this. References: How to increase the Exchange Server 2003 Service Pack 2 18-gigabyte database size limit Database Size Limit Configuration and Management

Thanks Amit for your Great Support for Resolve the Database size issue..