Debug diagnostics Tool 1.0 cannot monitor memory leakage

When IIS diagnostics-Debug diagnostics is used to analyze the memory leak of the w3wp process, creating full-user dump alone is ineffective. We should first let it monitor memory leak, however, I was told on the company's Windows 2003 Server today that I could not monitor it. Then I asked the gtec's Niu Ren lixiong for the reason that the settings are as follows:

What is depressing is that after I install this option on company 2003 and home XP, It is not checked by default, but the checked by default option is installed on Vista.