diff --git a/TimberWinR.sln b/TimberWinR.sln
index 08c7610..75d1761 100644
--- a/TimberWinR.sln
+++ b/TimberWinR.sln
@@ -19,6 +19,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		appveyor.yml = appveyor.yml
 		LICENSE.txt = LICENSE.txt
 		README.md = README.md
+		showenv.bat = showenv.bat
 	EndProjectSection
 EndProject
 Project("{930C7802-8A8C-48F9-8165-68863BCCD9DD}") = "TimberWinR.Wix", "TimberWix\TimberWinR.Wix.wixproj", "{82A39B31-61EC-468D-AA71-0D949AC6528F}"
diff --git a/appveyor.yml b/appveyor.yml
index ccfc596..ea59d19 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,6 +3,9 @@ version: 1.2.{build}
 build:
   verbosity: minimal
 
+after_build:
+	showenv.bat
+
 assembly_info:
   patch: true
   file: AssemblyInfo.*
diff --git a/showenv.bat b/showenv.bat
new file mode 100644
index 0000000..8cbc0dd
--- /dev/null
+++ b/showenv.bat
@@ -0,0 +1,3 @@
+@echo on
+set
+dir /s