virtualbox.org

A new setup of VirtualBox on othervise pretty fine working Windows XP ended with a repeated crash Again and again and again.
And before you ask, no, I can't update VB. Tried it, got two BSOD in a row (the first time I saw BSOD on this system in years), and rolled back to 3.12.

See Minimum information needed for assistance.

Did you read my post at all before replying?

Yes. It was fairly short.

Then, perhaps, you should re-read it. I am not asking for assistance, I am asking for explanation.
That said DLL (along with VBoxREM32.dll) is missing any versioninfo or other clues that might point to its purpose, denying any further investigation.
At first I though it's something malicious, because of that, and because the system is 32-bit, while the name suggests the relevance to 64-bit system, which lead me to believe in an attempted deception.

As long as you don't need assistance. Here's the link to the source code.

VboxREM64.dll is not malicious.

I don't speak bird languages. The source code is of no use for me.

Then you will just have to accept what you have been told.