Plugins not working after updating Acrobat DC Pro

[kimioy67770080]

We are developing plugins in C++.
The plugin stopped working in Ver.2022.003.20310.
The same applies to Ver.2022.003.20314.
Windows 10, 11 Acrobat DC Pro 32bit 64bit
In the folder "plug_ins", create our folder, for example "aaaa",
There are ****.dll and ****.api, and at startup, both communicate and the plug-in starts, but
Communication has become impossible with Ver.2022.003.20310. We also understand Enabling custom policies.

[Thom Parker]

You do know that there are different 32bit and 64bit versions of Acrobat, and that plug-ins that are compiled for 32bit will not run in the 64bit Acrobat. 

[kimioy67770080]

Of course

[Thom Parker]

Ok then, so what are it specific issues then?  Is the DLL linked or loaded? Is this on the 32bit or 64bit version?  

[kimioy67770080]

I am developing a plug-in for Acrobat32bit/64bit.
We sell plug-ins similar to the famous AutoBookmark.
Please see (http://www.d-sols.com/) in Japanese.
I can develop plugins, but I use another company's product for licensing.
(See https://www.imagekit.com/ProKit35Help/index.html.)

It's difficult to explain, but Acrobat (32bit/64bit) worked fine up to 22.003.20282.
In 22.003.20310, api and DLL can no longer communicate. Even if I asked the developer of the DLL, they said they didn't know because they had never developed a plug-in (api).
I want to know what changed in 22.003.20310.

[Test Screen Name]

"It's difficult to explain". Still, please try. "Can't communicate" gives us nothing to go on.

"I want to know what changed in 22.003.20310." I'm not aware of anything specific, except that Protected Mode seems to have switched on for more users. I assume you switched that off?

[Test Screen Name]

Please define the "communication" that stops working. What is communicating, with what, and how?  Why is there a DLL file as well as an API file? Does Acrobat keep working, or hang, or crash?