PowerShell Module and SnapIn Checks

One of the companies that I do a lot of work for uses Office 365 and everything they do is in bulk. Going through the portal to do anything is time consuming for everyone so I have been writing PowerShell scripts to automate as much as possible. The most common thing that I found is that I have to load the following modules and snapin's almost every time I run a script or a command. So rather than opening up several PowerShell windows to accomplish this task, I just load all the modules in the one window and proceed from there.

Here is the script that I put in place for loading all the modules for the following products:

- Exchange 2010

- Active Directory

- MS Online (Office 365)

- Quest AD Tools

The script does a check first to see if you have the module/snapin already loaded. If so, then it will skip to the next one. If not, then it will load the module/snapin. 

# Exchange Module Check
write-host "Checking to see if the Exchange Management PowerShell is installed"
if ((get-pssnapin -name Microsoft.Exchange.Management.PowerShell.E2010 -ErrorAction SilentlyContinue | foreach { $_.Name }) -ne "Microsoft.Exchange.Management.PowerShell.E2010")
{
write-host Exchange Management PowerShell is not added to this session, adding it now...
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010 -ErrorAction SilentlyContinue
}
else
{
write-host Exchange Management PowerShell is good to go. -backgroundcolor black -foregroundcolor green
start-sleep -s 1
}
write-host
write-host


# AD Module Check
write-host "Checking to see if the Active Directory PowerShell module is installed"
if ((get-module -name ActiveDirectory -ErrorAction SilentlyContinue | foreach { $_.Name }) -ne "ActiveDirectory")
{
write-host ActiveDirectory Management PowerShell is not added to this session, adding it now...
import-module activedirectory
}
else
{
write-host Active Directory PowerShell module is good to go. -backgroundcolor black -foregroundcolor green
start-sleep -s 1
}
write-host
write-host



# Microsoft Online Module Check
write-host "Checking to see if the Microsoft Online PowerShell module is installed"
if ((get-module -name MSOnline -ErrorAction SilentlyContinue | foreach { $_.Name }) -ne "MSOnline")
{
write-host Microsoft Online Management PowerShell is not added to this session, adding it now...
import-module MSOnline
connect-msolservice -credential
}
else
{
write-host Microsoft Online PowerShell module is good to go. -backgroundcolor black -foregroundcolor green
start-sleep -s 1
}
write-host
write-host



# Quest AD Module Check
write-host "Checking to see if the Quest AD PowerShell module is installed"if ((get-pssnapin -name Quest.ActiveRoles.ADManagement -ErrorAction SilentlyContinue | foreach { $_.Name }) -ne "Quest.ActiveRoles.ADManagement")
{
write-host Quest AD Management PowerShell is not added to this session, adding it now...
Add-PSSnapin Quest.ActiveRoles.ADManagement -ErrorAction SilentlyContinue
}
else
{
write-host Quest AD PowerShell module is good to go. -backgroundcolor black -foregroundcolor green
start-sleep -s 1
}