If 4UTILS works in TCC, it should be fine in IDE.EXE (is here).
Why do you use 4UTILS_LOAD? It's not required and using it gives no performance gain. With or without 4UTILS_LOAD, 4UTILS will be loaded if it's in the default plugin location. 4UTILS_LOAD only limits what commands, variables, and functions 4UTILS tells TCC about.