Installation error – Windows Azure Active Directory module for Windows PowerShell

This is a rather missleading error messages – “In order to install Windows Azure Active Directory Module for Windows PowerShell, you must have Microsoft Online Services Sign-In Assistant version 7.0 (64 bit) or greater installed on this computer.” This seems to caused by a wrong version check when trying to install the official Windows Azure Active Directory Module for Windows PowerShell. Note, Effective October 20, 2014, the 32-bit version of Azure Active Directory Module for Windows PowerShell (32-bit version) is discontinued. Support for the 32-bit version will no longer occur, and future updates to the Azure Active Directory Module will be released only for the 64-bit version. Microsoft strongly recommend you install the 64-bit version to ensure future support and compatibility. Before trying the fix below make sure you have the .NET framework 3.5 installed/enabled as this is a pre-requisite. If this doesn’t fix it try the following:

1. Open regedit.exe
2. Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSOIdentityCRL
3. Change the value of MSOIDCRLVersion from 7.250.4303.0 to 7.250.4551.0
4. You should now be able to install the Windows Azure Active Directory Module for Windows PowerShell.
5. After the installation is complete, change MSOIDCRLVersion back to 7.250.4303.0