ShotGrid 툴킷 사용 시 3ds Max를 시작하면 충돌 오류가 발생하는 이유는 무엇입니까?

"""
Before App Launch Hook
This hook is executed prior to application launch and is useful if you need
to set environment variables or run scripts as part of the app initialization.
"""
import os
import tank

class BeforeAppLaunch(tank.get_hook_baseclass()):
    """
    Hook to set up the system prior to app launch.
    """
    def execute(self, **kwargs):
        """
        The execute functon of the hook will be called to start the required application
        """
        env_path = os.environ["PATH"]
        paths = env_path.split(os.path.pathsep)
        # Remove folders which have msvcr90.dll from the PATH
        paths = [path for path in paths if "msvcr90.dll" not in map(
            str.lower, os.listdir(path))
        ]
        env_path = os.path.pathsep.join(paths)
        os.environ["PATH"] = env_path