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That is good news!

Additional info:

When trying a older VMP version (build 1213) then it also works on Parallells. So it seems it is something added in later versions of VMP that causes problem with Parallells for ARM.

Admin wrote:Did you try your application on Windows 10 ARM without Apple Mac M1?

Yes, it works fine on Windows 10 ARM on Surface Pro X.

Hi, We have a similar ARM problem. Environment: - Apple Mac M1 - Windows 10 ARM running in Parallells Desktop VMProtected file will not start. We've tried 3.6.0 build 1408 and build 1445 with same result. Works fine in Windows 10 on Intel. Works on ARM when not using VMProtect. We only use VMProtect...

Ok, we did try to make a smallest reproduceable example of a problem we have in our product. In the real code the branches in switch are not optimized away so this example probably does not expose the real problem. I'll try to create better example.

I see. If I understand you correctly it means VM-Protect has an issue with virtualizing a jumptable when it is generated using this technique that Intel C++ uses. But can you detect this code sequence while VM-Protect is processing the binary and emit an error if it fails to virtualize the code corr...

What part of the C-code generates that set of instructions? I don't see it here with same source on godbolt: https://godbolt.org/z/5UTpEY

When compiling the attached project with Intel C++ version 19.0, and then protecting it with VM-Protect, the resulting exe-file does not work correctly. Please check what is wrong, thank you. Attached sources and binaries.

It seems to work now. Thank you.

Here is a zip that also contain the map-file in case you need it.

This is where I suspect the problem is. It seems to work with bit offsets that are small (less than 16?) but in the example where it is 32 it will fail to virtualize correctly.

Admin wrote:Please send us a compiled binary instead of its sources.

Here you are.

Hi, I see this in the changelog for VMP 3.4: "Fixed a bug that occurred during virtualization of BT [m16]" But there still is a problem with latest release. The following Delphi program will use the BT instruction to find a value in a set and it fails after being virtualized. Tested in VMP...

Just one more question: There is still the startup delay. I thought the VMProtectIsValidImageCRC function would do the CRC-check at that point, but it still seems it enables Memory protection and this happens during load (causing long startup delay), and then the VMProtectIsValidImageCRC function on...

Admin wrote:Please try the 1086 build.

Thank you, it works now.

Attaced is exe-file built from code shown in previous post. VM-Protect is used with "Memory protection" off (and all other VMP options off too). There is longer startup delay which indicates CRC-check takes place (note: this is during load, it has not yet printed the "start" mess...