Today, we using the following for the default installation directories for MongoDB

%ProgramFiles%\MongoDB 2.7 Standard
%ProgramFiles%\MongoDB 2.7 SSL
%ProgramFiles%\MongoDB 2.7 Enterprise

I plan to change to:

%ProgramFiles%\MongoDB\Server\2.7

This is consistent with MMS which uses:

%ProgramFiles%\MongoDB\MMS

Today, for the server, we have 3 editions: Standard (ie, open source without SSL), SSL edition (new in 2.7), and Enterprise. We make them unique with different folder, and product names (a MSI term). This allows a user to install both Standard, and Enterprise on a machine. In 2.8, we should match Linux behavior, and only allow a single edition on a machine. This is also consistent with other Windows products like Microsoft Office, Microsoft Visual Studio, and Microsoft SQL Server which all install to same path regardless of the product edition the user has chosen.

The overall goal of this is to achieve consistency between MongoDB & MMS, and simplify the Windows installation paths.