[FinalBuilder Professional Edition]
The SQL Server Options allow you to set the various paths to the SQL Server tools. Access the options page via Tools Menu | Options | Other Category | SQL Server

ISQL Location - the location of isql.exe
OSQL Location - the location of osql.exe
SQLCmd Location - the location of sqlcmd.exe
Default SQL Server Tool - choose the default SQL Server tool for the MSSQL Execute SQL action.
DTSRUN Location - the location of dtsrun.exe
SQLMAINT Location - the location of sqlmaint.exe
SQL Best Practices Analyzer Install Directory - the installation directory of the SQL Best Practices Analyser