On the Nasdaq exchange Microsoft is abbreviated "MSFT"
In regular conversation Microsoft is commonly abbreviated as "MS" with people referring to Microsoft Windows as "MS windows" or office as "MS office"
On online forums it is not uncommon to see it abbreviated as "M$". The dollar sign is meant as a reference to Microsofts history of cutthroat business practices.
NASDAQ Symbol for Microsoft
"EXP" is the abbreviation!!
Microsoft is an acronym for Microcomputer Software.
Microsoft Network
MC
MIE is an abbreviation for Microsoft Internet Explorer. Microsoft Internet Explorer is a web browser that was first launched by Microsoft in 1995 as part of their Windows 95 release.
Wind. or Win. are two acceptable abbreviation of Windows as in the Microsoft Operating System.
Administrative template files.
This is abbreviation of Microsoft Solution Framework.
MTK is an abbreviation for Microsoft Tool Kit.
Microsoft Service Network. It stood for The Microsoft Network hen it was launched back in 1995, but actually stands for Microsoft Service Network.
I am guessing "doc" since Microsoft documents have abbreviated file extensions as "doc".