What does Windows error code 152 (ERROR_TOO_MANY_MUXWAITERS) mean? Status / error code: Category: Constant name: Source: Operating System: Description: DosMuxSemWait did not execute; too many semaphores are already set. Could be also: ConstantTypeOS END_OF_NT_EVALUATION_PERIODBugCheck CodeWindows Looking for a different code? Search another status or error code.