====== Enabling SNMP in Windows Server ======
From: https://visualplanet.org/blog/?p=344

<code>
 $pollers = @("Observium","10.10.5.4","prtg01") # Edit this to contain your SNMP Pollers (IP or DNS name) so it looks like this @("172.16.0.85")
 $CommunityStr = @("community") # Edit this to contain your community strings so it looks like this @("community","private2")

 Import-Module ServerManager

 #test if SNMP-Service Feature is enabled
 $test = Get-WindowsFeature -Name SNMP-Service

 #Install/Enable SNMP-Service if it is not enabled
 If ($test.Installed -ne "True") {
 Write-Host "Enabling SNMP-Service Feature"
 Get-WindowsFeature -name SNMP* | Add-WindowsFeature -IncludeManagementTools | Out-Null
 }

 #re-test if SNMP-Service Feature is enabled and update variable
 $test = Get-WindowsFeature -Name SNMP-Service

 #Setup reg keys to configure SNMP-Service if Feature is Enabled
 If ($test.Installed -eq "True"){
 Write-Host "Configuring SNMP-Services with your Community strings and Permitted pollers"
  reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\PermittedManagers" /v 1 /t REG_SZ /d localhost /f | Out-Null

 Foreach ($String in $CommunityStr){
 reg add ("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\TrapConfiguration\" + $String) /f | Out-Null
 reg delete ("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\TrapConfiguration\" + $String) /ve /f | Out-Null
 reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\ValidCommunities" /v $String /t REG_DWORD /d 4 /f | Out-Null
 $i = 2

 Foreach ($Manager in $pollers){
 reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\PermittedManagers" /v $i /t REG_SZ /d $manager /f | Out-Null
 reg add ("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SNMP\Parameters\TrapConfiguration\" + $String) /v $i /t REG_SZ /d $manager /f | Out-Null
 $i++
 }
 }
 }
 Else {
 Write-Host "Error: SNMP Setup did not complete"
 }
</code>

To run:
<code>
set-executionpolcity unrestricted
\\server\share\enable-snmp.ps1
</code>