Compare the tools used by developers and test managers in Microsoft and open-source software communities.

Microsoft Bug Management System
Product Studio
Test director
Team Foundation Server

Microsoft's source code control system
Visual source safe
Source depot
Team Foundation Server

Microsoft's Document Management System
Share Point Server

Microsoft User Management System
Microsoft Active Directory

Open-source Bug Management System
Bugzilla
Mantis
Bugfree

Open-source version control system:
Control version System (CVS)
Subversion (SVN)
Because the Unified Open-source lisense is followed, there are many independent branch versions of servers and clients. Visual SVN Server is a well-known server, and tortoisesvn is a well-known client. In addition, Viusal SVN client can be integrated with Visual Studio.
Although visual SVN server has a free version, it also has a paid version. The advantage of the paid version is that it can be integrated with Microsoft Active Directory, that is, users and user groups in Microsoft Active Directory can be used.