diff --git a/Install-Enscape.ps1 b/Install-Enscape.ps1
index f37ae16..13d455b 100644
--- a/Install-Enscape.ps1
+++ b/Install-Enscape.ps1
@@ -1,4 +1,15 @@
-# Path to the MSI installer
+# Exit early if apps are running
+$ExitEarly = $false
+$AppNames = @()
+If ( IsRunning -Name 'revit' )       { $ExitEarly = $true ; $AppNames.Add('Revit') }
+If ( IsRunning -Name 'sketchup' )    { $ExitEarly = $true ; $AppNames.Add('SketchUp') }
+If ( IsRunning -Name 'archicad' )    { $ExitEarly = $true ; $AppNames.Add('ArchiCAD') }
+If ( IsRunning -Name 'autocad' )     { $ExitEarly = $true ; $AppNames.Add('AutoCAD') }
+If ( IsRunning -Name 'rhino' )       { $ExitEarly = $true ; $AppNames.Add('Rhino') }
+If ( IsRunning -Name 'vectorworks' ) { $ExitEarly = $true ; $AppNames.Add('VectorWorks') }
+If ( $ExitEarly ) { Write-Output "Installation cannot continue because the following apps are running: ${AppNames}." ; Return }
+
+# Path to the MSI installer
 $URL = 'https://enscape-installer.chaosgroup.com/installer.enscape.io/Enscape-4.0.2.11.exe'
 
 # Set path to temp directory