Windows 10: Classic ASP very slow when Windows Defender is turned on

And here we are again... 2023 and Microsoft is still neglecting to fix this issue.On 2019, September the 27th, I wrote:Hi everyone.I've noticed that when Windows Defender is turned on my Classic ASP applications get very very very slow. Something like 80% slower.We can find some information about it on the internet, about people complaining about the same thing.The issue occurs on Windows 10 1809 / 1903 and also on Windows Server 2019 1809.This problem does not occur on Windows Server 2016 1607.Some say that the problem is with vbscript.dll, but even if I add this on the exclusion li

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Classic ASP very slow when Windows Defender is turned on

Hi everyone.

I've noticed that when Windows Defender is turned on my Classic ASP applications get very very very slow. Something like 80% slower.

We can find some information about it on the internet, about people complaining about the same thing.

The issue occurs on Windows 10 1809 / 1903 and also on Windows Server 2019 1809.

This problem does not occur on Windows Server 2016 1607.

Some say that the problem is with vbscript.dll, but even if I add this on the exclusion list the problem still occurs.

The only way to make my applications running fast again is to disable the Real Time Protection, which is obviously not what I wanted to do.

I really need Microsoft to explain what has changed and what is the best way to address this issue and solve the problem definitely.

Thanks in advance.

Cezar

 

Classic ASP very slow when Windows Defender is turned on

Hi Cezar

My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.

This is explaination I found on the following thread:

As explained above this is a system level script engine (vbscript.dll) problem which affects *ALL* Classic ASP scripts written in VBScript. You can find other similar reports for other scripts on the internet. It is a script engine issue NOT related to database
schema or database provider. Before Microsoft releasing a good vbscript.dll, all Classic ASP users (including us) have no choice but to use an old one.

Source:
http://www.hkvforums.com/viewtopic.php?f=1&...

The recommendation is the replace the vbscript.dll with one from Windows Server 2016 if you have access to that version.

I would also recommend you file a bug report; send me the short link so I can vote on it and bring it to the attention of the Windows engineers in my capacity as a Windows Insider MVP.

See instructions how to file the bug report.

https://windows10.help/blogs/entry/54-how-to-su...

Information in the above link is sourced from a trusted Microsoft MVP blog.

 

ASP Classic 3.0 support

Hello,

I am conducting security assessments for Hitachi Energy and was wondering whether you could answer the following questions for me regarding ASP Classic version 3.0?

Could you please provide me with the answers to the following questions?

• What is the latest version of the application?
  
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• When was the release date for the latest version of this application?
  
  • 
    
• When was the release date for version 3.0 of this application?
  
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• Are there any known identified vulnerabilities for the latest version of this application?
  
  • 
    
• Are there any known identified vulnerabilities for version 3.0 of this application?
  
  • 
    
• Is version 3.0 still supported (will receive updates, security or otherwise)?
  
  • 
    
• Are there any plans to discontinue this application (End-of-Life)?
  
  • 
    

Thank you in advance for your time

Kind regards,