The Microsoft Technology Specialist (MCTS) certification is the first level of a new generation of Microsoft certifications targeted to specific Microsoft technologies,

A MCTS must demonstrate an in-depth knowledge, and be capable of implementing, building, troubleshooting, and debugging a particular Microsoft technology.

The Technology Series certifications do not include job role skills and will be retired when mainstream product support for the particular technology expires.

An examples of this certification is:

• A Microsoft Certified Technology Specialist (MCTS) on Windows Vista, Configuration. 

Only one Microsoft exam is needed for this certification: 70-620 This is designed for professionals with experience of resolving issues related to desktop operating systems and applications, logon problems, password resets, security and network connectivity.

Other MCTS certifications are available. Full details can be found on the Microsoft Website