HttpPlatformHandler运行Flask应用意外退出，无明确错误求助

此前长期在本地通过IIS搭配FastCGI运行Flask应用，如今因FastCGI已停止维护，计划在EC2的Windows Server 2022镜像上，通过IIS搭配HttpPlatformHandler进行生产环境部署。但始终无法成功，遂暂时放弃实际应用，转而尝试部署一个简单的"Hello World" Flask应用，仍未解决问题。

应用目录结构 #

C:\inetpub\wwwroot\test\test.py
C:\inetpub\wwwroot\test\web.config

web.config配置内容 #

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.webServer>
    <handlers>
      <add name="httpPlatformHandler" path="*" verb="*" modules="httpPlatformHandler" scriptProcessor="C:\Program Files\Python311\python.exe| c:\inetpub\wwwroot\test\test.py" resourceType="Unspecified" requireAccess="Script" />
    </handlers>
    <httpPlatform stdoutLogEnabled="true" stdoutLogFile=".\test.log" startupTimeLimit="20" processPath="C:\Program Files\Python311\python.exe" arguments=".\test.py">
            <environmentVariables>
                <environmentVariable name="PORT" value="%HTTP_PLATFORM_PORT%" />
            </environmentVariables>
        </httpPlatform>
        <tracing>
            <traceFailedRequests>
                <add path="*">
                    <traceAreas>
                        <add provider="ASP" verbosity="Verbose" />
                        <add provider="ISAPI Extension" verbosity="Verbose" />
                        <add provider="WWW Server" areas="Authentication,Security,Filter,StaticFile,CGI,Compression,Cache,RequestNotifications,Module,FastCGI,WebSocket" verbosity="Verbose" />
                    </traceAreas>
                    <failureDefinitions statusCodes="500-600" />
                </add>
            </traceFailedRequests>
        </tracing>
  </system.webServer>
</configuration>

test.py应用代码 #

from flask import Flask

app = Flask(__name__)

@app.route('/')
def main():
    return "Hello World"

已尝试的操作与确认项 #

• 曾将scriptProcessor设置为"C:\Program Files\Python311\python.exe"，问题依旧（此前FastCGI环境下通过管道指定test.py可行，故尝试此方式）
• 已确认权限：IIS AppPool\DefaultAppPool和IIS_IUSRS账户对Python311文件夹拥有读取/执行权限，对inetpub\wwwroot\test文件夹拥有读取/写入/执行权限

已查阅教程、StackOverflow帖子及其他资料，未获得有效解决建议，寻求排查方向。

内容的提问来源于stack exchange，提问作者oonec