SQL Server 2012 (or 2008) is the Database Engine that is used as the main, typically shared, repository of information for CONTROL Pro Studio.

A Free version (Express) can be downloaded from Microsoft
http://www.microsoft.com/en-us/download/details.aspx?id=29062
           (Search "Microsoft SQL Server Express" if the link above changes to find it in google or bing)

All Related SQL Install files are found at this link.

Download one of the following based on your system and Administrative needs. all installs will meet the programs needs

"SQLEXPR_x64_ENU.exe" - for 64 bit platform, Includes the fully functional database engine only.
OR
"SQLEXPRWT_x64_ENU.exe" for 64 bit platform, Includes the DB Engine and SQL Management Studio.
OR
"SQLEXPRADV_x64_ENU.exe" - for 64 bit platform, Include the DB Engine and Advanced reporting and analysis services. This install is overkill for most needs, even at the corporate level.
OR
"SQLEXPR_x86_ENU.exe", "SQLEXPRWT_x86_ENU.exe", "SQLEXPRADV_x86_ENU.exe" - for 32 bit platforms, specifications are the same as the above items.


After selection above you will have to wait for the next step...

IMPORTANT STEP BELOW REGARDING SECURITY SETTINGS! 

Exit the installer