Installs Slack on Windows.

Evaluation code:

#REQUIRES -Version 2.0


<#


.SYNOPSIS


    This Test script checks to see if Slack is installed


.DESCRIPTION


    This script queries the installed files for 32 and 64bit software


    and returns a 0 if product is installed or 1 if not


.Notes


    File Name       :Slack_Install_Test.ps1


    Author          :Automox


    Prerequisite    :PowerShell V2 over win7 and upper


#>


#Handle Exit Codes:


trap {  $host.ui.WriteErrorLine($_.Exception); exit 90 }





function Slack_Install_Test {





	<#


    .SYNOPSIS


        This function Checks for the Slack is Installed on system or not .


    .DESCRIPTION


        After checking the Slack availability, based on the exit code tool will decide to call remediation code or not.


    .EXAMPLE


        Slack_Install_Test


    .NOTES


    #>





	# Name of the desired application.


	$appName = 'Slack'


	# Finding the Systen Directory (system32 Directory).


	$sysDir = [Environment]::SystemDirectory





	# Making the 32 bit and 64 bit path names blank.


	$32BIT = ""


	$64BIT = ""





	#Get Registry value for the 32 bit software installed on both 32-bit and 64-bit machine


	Try {  $32BIT = Get-ItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' -ErrorAction Stop |


			Select-Object DisplayName |


			Select-String "$appName" |


			Out-String


	}


	Catch { $Exception = $error[0].Exception.Message + "`nAt Line " + $error[0].InvocationInfo.ScriptLineNumber;


			Write-Output $Exception


			exit 90


	}


	# Script blcok to execute with powershell


	# Match name in the block should be hard coded.


	$scriptBlock = {$key = Get-ItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' |


					Where-Object { $_.DisplayName -match 'Slack'}


					return $key


					}





	# Get the Registry value for the 64 bit software installed on the 64 bit machine. as the automox process is 32 bit


	if ((Get-WmiObject Win32_OperatingSystem).OSArchitecture -eq "64-bit")


	{


		# Call for accessing the 64 bit registry incase 32 bit process not access the registry.


		Try


		{


			$installed64 = @(& "$env:SystemRoot\sysnative\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -NonInteractive -Command $scriptBlock)


			$64BIT = $installed64.DisplayName


		}


		Catch


		{


			$Exception = $error[0].Exception.Message + "`nAt Line " + $error[0].InvocationInfo.ScriptLineNumber;


			Write-Output $Exception


			exit 90


		}





	}


	# Check for the Availability of the software and exit with relevent exit code.


	if ($32BIT.Trim() -match $appName -or ($64BIT -ne $null -and $64BIT.Trim() -match $appName)) {


		#Application Found, Automox can handle the updates!


		exit 0


	} else {


		# Application is not installed! Run Remediation Script to install it.


		exit 1


	}


}





Slack_Install_Test

Remediation code:

#REQUIRES -Version 2.0


<#


.SYNOPSIS


    This script allows an admin to install Slack


.DESCRIPTION


    This script downloads the system-wide-slack installer. Once installed, the program


    checks to see if slack is installed WHEN A USER LOGS IN. If slack is not installed


    the program installs it in the packground.


    If a user has uninstalled slack, this will not reinstall it.


.NOTES


    File Name       :Slack_Install.ps1


    Author          :Automox


    Prerequisite    :PowerShell V2 over win7 and upper


#>


#Handle Exit Codes:


trap {  $host.ui.WriteErrorLine($_.Exception); exit 90 }





function Slack_Install{





    <#


    .SYNOPSIS


        This function allows automox to Install the Slack on Windows .


    .DESCRIPTION


        This function download and installs the latest version of Slack on system.


    .EXAMPLE


        Slack_Install


    .NOTES


    #>





    #############Change the settings in this block#######################


    # Save the installer in the powershell current working directory.


    $saveFilePath = "$PSScriptRoot\SlackSetup.msi"


	


	# If any old installer file is existed, Delete the old installer.


    if (Test-Path -Path "$saveFilePath") {


		Remove-Item -force "$saveFilePath" -ErrorAction SilentlyContinue


    }





    # Download msi Installer based on the bit version of the Windows OS


    if ((Get-WmiObject Win32_OperatingSystem).OSArchitecture -eq "64-bit") {


        $URL = "http://slack.com/ssb/download-win64-msi"


    } else  {


        $URL = "http://slack.com/ssb/download-win-msi"


    }





    ###### Download the msi installer file for the installation ######


    $downloader = (new-object System.Net.WebClient)


    Try {


        $downloader.DownloadFile("$URL", "$saveFilePath")


        Write-Output "Slack Installer download finished..."


    }


    Catch { Write-Output "File download failed. Check URL [$URL] and try again."


            exit 90


    }





    ###### Installing  slack on system ######


    Try {


        $process=Start-Process -FilePath msiexec.exe -ArgumentList '/i',$saveFilePath,'/q' -Wait -PassThru -ErrorAction Stop


        Write-Output "Slack Installion Finished..."


    }


    Catch { $Exception = $error[0].Exception.Message + "`nAt Line " + $error[0].InvocationInfo.ScriptLineNumber


            Write-Output $Exception


            exit 90


    }





    # Avoid error while deleting the installer as it is still in the process of installation.


    do {


        if ((Get-Content $saveFilePath)) {


            Write-Output "Installer complete...cleaning up installation files"


            Remove-Item -force "$saveFilePath" -ErrorAction SilentlyContinue


            exit $process.ExitCode


        } else {


            Write-Output "Waiting for Installer File Unlock"


        }


        $fileunlocked = 1


    }	Until ($fileunlocked)





}





Slack_Install