from the principles of the present invention as depicted in fig1 a casing string 12 has been positioned in a parent wellbore 14 and has been cemented therein the casing string 12 could be any type of tubular string such as a string of liner etc and the parent wellbore 14 could be any type of wellbore such as a branch wellbore a vertical horizontal or deviated wellbore etc in keeping with the principles of the invention in addition the terms u201c cemented u201d u201c cement u201d u201c cementing u201d etc as used herein are intended to encompass any means of securing and sealing the casing string 12 in the wellbore 14 for example materials such as epoxies gels resins polymers elastomers etc as well as cementitious materials may be used for this purpose after the casing string 12 has been cemented in the wellbore 14 a latch profile 16 is installed in the casing representatively the latch profile 16 is used in the method 10 to position a whipstock assembly 18 at a location in the casing string 12 where it is desired to drill a branch wellbore however it is to be clearly understood that the latch profile 16 may be used for any of a large variety of purposes other than positioning the whipstock assembly 18 without departing from the principles of the invention for example the latch profile 16 could be used to position a device for re entering the branch wellbore after it is drilled and the whipstock assembly 18 is retrieved from the well the latch profile.