Because Microsoft no longer issues security patches for this version, any server running it is highly vulnerable to modern exploits. It should only be used in isolated, non-internet-facing environments. Microsoft SQL Server 2005 - Microsoft Lifecycle
Believe it or not, the 32-bit (x86) ISO of SQL Server 2005 Standard will install and run perfectly on a 64-bit version of Windows Server (2008 R2 or older). It will run under Windows on Windows 64 (WOW64).
. These are updates only and require an existing installation to apply. Express Edition
SQLServer2005.Standard.x64.ISO
Because Microsoft no longer issues security patches for this version, any server running it is highly vulnerable to modern exploits. It should only be used in isolated, non-internet-facing environments. Microsoft SQL Server 2005 - Microsoft Lifecycle
Believe it or not, the 32-bit (x86) ISO of SQL Server 2005 Standard will install and run perfectly on a 64-bit version of Windows Server (2008 R2 or older). It will run under Windows on Windows 64 (WOW64).
. These are updates only and require an existing installation to apply. Express Edition
SQLServer2005.Standard.x64.ISO