diff --git a/build_scripts/windows/scripts/az b/build_scripts/windows/scripts/az
index 6600548847e..d87c2401e90 100644
--- a/build_scripts/windows/scripts/az
+++ b/build_scripts/windows/scripts/az
@@ -1,3 +1,5 @@
 #!/usr/bin/env bash
 
-AZ_INSTALLER=MSI "$(dirname "${BASH_SOURCE[0]}")/../python.exe" -IBm azure.cli "$@"
+SCRIPT_DIR=$(dirname "${BASH_SOURCE[0]}")
+export PYTHONPATH="$(dirname "$SCRIPT_DIR")"
+AZ_INSTALLER=MSI "$SCRIPT_DIR/../python.exe" -IBm azure.cli "$@"
diff --git a/build_scripts/windows/scripts/az_msi.cmd b/build_scripts/windows/scripts/az_msi.cmd
index 9e9708908c6..feb1549be65 100644
--- a/build_scripts/windows/scripts/az_msi.cmd
+++ b/build_scripts/windows/scripts/az_msi.cmd
@@ -4,6 +4,7 @@
 ::
 
 @IF EXIST "%~dp0\..\python.exe" (
+  SET PYTHONPATH=%~dp0\..;%PYTHONPATH%
   SET AZ_INSTALLER=MSI
   "%~dp0\..\python.exe" -IBm azure.cli %*
 ) ELSE (
diff --git a/build_scripts/windows/scripts/az_zip.cmd b/build_scripts/windows/scripts/az_zip.cmd
index 07e4acb73ff..bdfec6953c2 100644
--- a/build_scripts/windows/scripts/az_zip.cmd
+++ b/build_scripts/windows/scripts/az_zip.cmd
@@ -4,6 +4,7 @@
 ::
 
 @IF EXIST "%~dp0\..\python.exe" (
+  SET PYTHONPATH=%~dp0\..;%PYTHONPATH%
   SET AZ_INSTALLER=ZIP
   "%~dp0\..\python.exe" -IBm azure.cli %*
 ) ELSE (