Answer well appreciated — I understand and agree with you. 
As a lifetime user, I would like to address the current driver compatibility and EV certificate requirements in terms of an inssurance, which raise both technical and legal concerns.
You could consider working with the Electronic Frontier Foundation (EFF) and, if necessary, pursuing the matter to the Federal Trade Commission (FTC).
The objective would be to maintain most of your source code private, sharing only a minimal portion, while requesting that Microsoft register and update your driver from version 10 to version 15 — signed by you — without disclosing the core of your application.
As a security application, you should not be subject to contractual requirements that compromise your intellectual property, especially when Microsoft itself does not hold an independent EV certificate.
Why do I say this?
The compatibility driver in use originates from version 10 of Datpol (the former owner) and not from version 15 of the application is not due to any fault of yours,.
the Core Isolation feature (also known as Memory Integrity) is creating significant technical and financial burdens for users seeking privacy. The way Microsoft has implemented and enforced this feature may raise competition law concerns.
The EFF can pursuiing them to the FTC, so you still keep most of your source code private, and only sharing a minimal portion, to pressure Microsoft into registering your driver and updating it from version 10 to version 15 — signed by you, without giving away the core of your application.
no money no engagement, non contract no duty for any inssurance.
IN THE TOP OF IT :
As a security application, you should not be forced into arrangements that compromise your intellectual property most of it when Microsoft does not have an EV certificate too.
Legal info :
This under requirement is not fair:
Prerequisites from the link above:
Abuse : No company should be forced to obtain an EV certificate solely to participate in such security program. Driver tracing and verification by users should be sufficient. Any additional insurance or certification should remain the company’s own responsibility.
Where is the abuse?
Here: Code Signing Agreement | Microsoft Learn — (Terms of Service) → This is not fair.
Relevant excerpt from section 4 — Intellectual Property:
(a) Licenses to Microsoft. Company grants Microsoft, under all Company’s IPR, a worldwide, nonexclusive, royalty-free, fully paid-up right to reproduce and use any code and any installation/technical reference information provided, solely to perform under this Agreement.
PRIVACY AND LOYALTY TO THE JUSTICE COURT CONCERN :
Why is this an issue?
(Microsoft was condemned for abusing intellectual property rights against other manufacturers)
and today : In breach of Article 102 TFEU, prohibiting abuse of a dominant position"
« Any abuse by one or more undertakings of a dominant position within the internal market or in a substantial part of it shall be prohibited as incompatible with the internal market in so far as it may affect trade between Member States. »
Although the Federal Trade Commission (FTC) operates under U.S. jurisdiction, it maintains formal cooperation agreements with the European Commission that allow coordinated action in cases involving both American and European consumers or competition issues.
My conclusion (personal advice):
I would prefer to provide a portion of my source code to a lawyer, free of charge, to legally challenge Microsoft’s rules and secure the ability to sign a Microsoft compatibility driver — without compromising my entire application.
In my view, the “Core Isolation” / “Memory Integrity” feature should not be imposed in its current form, as it remains experimental and risks harming market competition.
Microsoft has no legal right, particularly within the EU, to restrict deep kernel/system-level access for purely commercial purposes without providing users with the ability to encrypt their own searches and input on personal computers — no EV certificate is required for this purpose.
Ps : if you need to put this on another topic, is free of charge 
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