illustrated the sidetracking system 100 comprises a whipstock assembly 104 having an expandable anchor assembly 106 attached below the whipstock assembly the whipstock assembly 104 comprises a sidetracking slide or ramp 105 formed to facilitate drilling of a sidetracked window and lateral wellbore the whipstock assembly 104 may be oriented about a central axis 101 in any direction i e 360 u00b0 so that a sidetracked wellbore may be drilled in a desired direction the expandable anchor assembly 106 may be attached to the whipstock assembly 104 via a threaded connection 111 alternatively other types of connections also may be used the expandable anchor assembly 106 comprises multiple slips 107 that may be expanded radially outward to engage a surrounding wellbore wall such as a formation wall or casing engagement of the slips 107 with the surrounding wellbore wall anchors the sidetracking assembly 100 at the desired location in the wellbore the slips 107 may be hydraulically actuated by increasing the pressure on fluid within the central bore 102 to cause the slips 107 to expand radially outward however the slips 107 may be actuated by other techniques e g mechanical actuation a sub 108 of the sidetracking system 100 may be constructed as a burst sub having a removable member e g a burst disc 112 by way of example the sub 108 may be attached to a lower end of the expandable anchor assembly 106 the burst disc 112 enables the increasing of pressure in the central bore 102 to actuate the expandable anchor assembly 106 in this example the sub 108 contains.