I already know my version : SQL Server 2012 SP1 (with no aditionnal CU applied on it).
Here is a bit more context : I'm trying to install SQL Server CE 3.5 SP2 Server Tools (on a Windows 2012 Server)
IIS prerequisite is okay but I'm still stuck with the SQL Server version prerequisite (with any of the SQL Server Service Pack installed) - whereas I should be able to install it on Denali (SQL Server 2012).
During the past, I was able to install this component (same setup) without any issue (after installing one of the two cumulative update, I don't remember which one)
This should be doable, according to the following :
merge-replication-with-sql-server.html
installation-configure-sql-server-compact-3-5-sp2-for-sql-server-2012-on-windows-2012-2