diff --git a/regress/pesterTests/CertAuth.Tests.ps1 b/regress/pesterTests/CertAuth.Tests.ps1
index 2e6a8e216..cb822ca95 100644
--- a/regress/pesterTests/CertAuth.Tests.ps1
+++ b/regress/pesterTests/CertAuth.Tests.ps1
@@ -79,7 +79,7 @@ Describe "E2E scenarios for certificate authentication" -Tags "CI" {
             
             #set up SSH_ASKPASS for key passphrase
             Add-PasswordSetting -Pass $keypassphrase
-            $o = ssh -i $user_key -p 47004 $pkuser@$server echo 2345
+            $o = ssh -vvv -i $user_key -p 47004 $pkuser@$server echo 2345
             Remove-PasswordSetting   
             
             Stop-SSHDTestDaemon -Port 47004
diff --git a/sftp-server.c b/sftp-server.c
index 14b7b8db6..b93a2980b 100644
--- a/sftp-server.c
+++ b/sftp-server.c
@@ -745,8 +745,9 @@ process_init(void)
 	compose_extension(msg, "expand-path@openssh.com", "1");
 	compose_extension(msg, "copy-data", "1");
 	compose_extension(msg, "home-directory", "1");
+#ifndef WINDOWS
 	compose_extension(msg, "users-groups-by-id@openssh.com", "1");
-
+#endif
 	send_msg(msg);
 	sshbuf_free(msg);
 }