SQL Server: How to SELECT the installation path?

Question

i know there is a variable, function, or stored procedure that you can use to find the path that SQL Server is installed to:

e.g.:

c:\\Program Files\         


        

Answer 1

CREATE FUNCTION Fn_sqlservertoolsdir()
returns NVARCHAR(4000)
AS
  BEGIN
      DECLARE @rc  INT,
              @dir NVARCHAR(4000),
              @key NVARCHAR(4000)

      SET @key = N'Software\Microsoft\Microsoft SQL Server\' + Replace(Cast(Serverproperty('ProductVersion') AS CHAR(2)), '.', '') + '0' + '\Tools\ClientSetup'

      EXEC @rc = master.dbo.Xp_regread
        N'HKEY_LOCAL_MACHINE',
        @key,
        N'Path',
        @dir output,
        'no_output'

      RETURN @dir
  END