Hello,
There are several different dotnet framework papers available at the MCTS level.
The best place to start will be to review the MCPD Certification paths at http://www.microsoft.com/learning/en/us/certification/mcpd.aspx#tab2
From this location you can target the certification you wish to achieve and it will outline the certification path available for this.
Hope this helps,
Jarad, MCITP, Brisbane Australia