How much memory SQL Server needs depends on the active working set, grants, and host headroom; learn to measure pressure and avoid fixed ratios.
SQL SERVER – 2005 Enable CLR using T-SQL script
In SQL Server 2005 the CLR is off by default. Here is the sp_configure script to enable CLR, turning on show advanced options and then clr enabled.
SQL SERVER – Enable xp_cmdshell using sp_configure
Enable xp_cmdshell with sp_configure: turn on show advanced options, set xp_cmdshell to 1 and run RECONFIGURE. The full script is ready to run in SSMS.