Fonts and Qickbooks

[Rob_NNCC]

I have a client that is a graphic artist and runs quickbooks 2013. He messed up his fonts so that the fonts in quickbooks are tiny and very hard to read. It was also messed up in his antivirus and with excel, but that is fixed now that I spent some time in font frenzy. My question is: What font type does quickbooks 2013 use for menus?
My google fu can not find this, and I need to know so I can check to make sure the font is in the computer.

Thank you in advance!

Rob.