If you do not wish to install the Management Shell feature then perform the following steps on the Custom Setup screen of the setup:
1) Select the Management Shell feature and choose the "Entire feature will be unavailable" option.
2) Select the Windows Administrative Tools Extension feature and choose the "Entire feature will be unavailable" option.
The Management Shell feature requires Windows PowerShell 1.0. The Windows Administrative Tools Extension feature requires Microsoft Management Console (MMC) 3.0.