diff --git a/appveyor.yml b/appveyor.yml
index 8618189273..bc3c7fa82d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,10 +4,6 @@ cache:
   - C:\Users\appveyor\.ant
   - C:\ProgramData\chocolatey\bin
   - C:\ProgramData\chocolatey\lib
-  - C:\libewf_64bit
-  - C:\libvhdi_64bit
-  - C:\libvmdk_64bit
-  - C:\zlib
   - '%APPVEYOR_BUILD_FOLDER%\Core\test\qa-functional\data'
 
 
@@ -16,9 +12,6 @@ platform: x64
 environment:
     global:
       TSK_HOME: "C:\\sleuthkit"
-      LIBVHDI_HOME: "C:\\libvhdi_64bit"
-      LIBVMDK_HOME: "C:\\libvmdk_64bit\\libvmdk"
-      LIBEWF_HOME: "C:\\libewf_64bit"
       JDK_HOME: C:\Program Files\Java\jdk1.8.0
       PYTHON: "C:\\Python36-x64"
 
diff --git a/build-windows.xml b/build-windows.xml
index 7f03aa3dde..1ed47c1252 100644
--- a/build-windows.xml
+++ b/build-windows.xml
@@ -21,13 +21,7 @@
         <mkdir dir="${i686}"/>
     </target>
     
-    <target name="checkTskLibDirs">
-        <property environment="env"/>
-        <condition property="ewfFound">
-            <isset property="env.LIBEWF_HOME"/>
-        </condition>
-        <fail unless="ewfFound" message="LIBEWF_HOME must be set as an environment variable."/>
-        
+    <target name="checkTskLibDirs">        
         <property name="tskLogicalImager.path" value="${env.TSK_HOME}/win32/Release_NoLibs/tsk_logical_imager.exe" />
         <property name="win64.TskLib.path" value="${env.TSK_HOME}/win32/x64/Release"/>
         <property name="win32.TskLib.path" value="${env.TSK_HOME}/win32/Release" />
diff --git a/developers/envvarsetup.py b/developers/envvarsetup.py
index dc3e2a4043..1e872bd28a 100755
--- a/developers/envvarsetup.py
+++ b/developers/envvarsetup.py
@@ -62,9 +62,6 @@ def add_path(paths):
 set_var("JAVA_HOME", open_jdk_home)
 set_var("JRE_HOME", path_join(open_jdk_home, "jre"))
 set_var("JDK_HOME", open_jdk_home)
-set_var("LIBEWF_HOME", path_join(source_base_path, "libewf_64bit"))
-set_var("LIBVHDI_HOME", path_join(source_base_path, "libvhdi_64bit"))
-set_var("LIBVMDK_HOME", path_join(source_base_path, "libvmdk_64bit", "libvmdk"))
 set_var("POSTGRESQL_HOME_64", postgres_home)
 set_var("TSK_HOME", path_join(source_base_path, "sleuthkit"))