The cop1.0.6rusmain_character_shadow_bug_workaround.txt file you have requested: Call of Pripyat / Utilities / Main Character Shadow Bug Work Around - 5.4kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
This mod/utility helps correct the issue with the huge shadow bug that can follow the player around.