Tested on Seven x64: When I run the flashing tool with administrator rights D+ gives a warning about direct disk access but that doesn't prevent the tool to fulfill its purpose. When I start the flashing tool without administrator rights D+ doesn't complain at all although most likely it still could flash in the new firmware.
I'm going to attach a picture what happens when I try the same with Kaspersky IS.
Edit: Here are the pictures:

And here is the flashing tool: