[ xpserver_ext]
extendedKeyUsage = 1.3.6.1.5.5.7.3.1
+
+#
+# Add this to the PKCS#7 keybag attributes holding the client's private key
+# for machine authentication.
+#
+# the presence of this OID tells Windows XP that the cert is intended
+# for use by the computer itself, and not by an end-user.
+#
+# The other solution is to use Microsoft's web certificate server
+# to generate these certs.
+#
+# 1.3.6.1.4.1.311.17.2