try {  
	[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;
	[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};
	(New-Object Net.WebClient).DownloadFile("https://hss-agent.cn-north-4.myhuaweicloud.com:10180/package/agent/windows/cn-north-4/hostguard_setup.zip", "C:\Users\hostguard_setup.zip");
	Add-Type -AssemblyName System.IO.Compression.FileSystem 
	[System.IO.Compression.ZipFile]::ExtractToDirectory("C:\Users\hostguard_setup.zip", "C:\Users\hostguard_setup");
	Start-Process -FilePath "C:\Users\hostguard_setup\hostguard_setup.exe" -ArgumentList "/SILENT" -Wait;
	Remove-Item -Path "C:\Users\hostguard_setup" -Recurse;
	Remove-Item -Path "C:\Users\hostguard_setup.zip";
	Add-Content "C:\Users\InstallAgent.log" "install success"
}  
catch {  
    Add-Content "C:\Users\InstallAgent.log" "install failed"  
}