It is a worldly custom that on Simchas Torah all the male children receive an Aliyah to the Torah. This Aliyah is customarily known as Kol Hanearim. It is customary to spread a Tallis over the heads of the children during this Aliyah. It is likewise customary to recite the verse of Hamalach Hagoel after the conclusion of the reading. Practically, the Chabad custom is not to spread a Tallis over the heads of the children during the Aliyah of Kol Hanearim. Likewise, it is not customary to read the verses of Hamalach Hagoel.
 Rama 669/1; Sichas Leil Simchas Torah 5715, printed in Toras Menachem 13/55; Otzer Minhagei Chabad p. 380
 Rama ibid
 This follows the wording of the Rama ibid
 Rebbe ibid
 Rama ibid; Rebbe ibid
 Rebbe ibid in name of the Rebbe Rayatz
The reason: As the day of Simchas Torah is higher than this concept of spreading a Tallis and saying these verses. [Rebbe ibid]