Index: PC/bdist_wininst/install.c
===================================================================
--- PC/bdist_wininst/install.c	(revision 81643)
+++ PC/bdist_wininst/install.c	(working copy)
@@ -2181,6 +2181,15 @@
     // interesting failure scenario that has been seen: initial executable
     // runs from a network drive - but once elevated, that network share
     // isn't seen, and ShellExecute fails with SE_ERR_ACCESSDENIED.
+
+    // successful execution was observed when network share requires
+    // authentication and credentials were entered correctly
+    // see http://bugs.python.org/issue8908
+
+    // another failure scenario with SE_ERR_ACCESSDENIED (code 5) was
+    // revealed by executable, which is run from non-Microsoft file system
+    // see http://bugs.python.org/issue8870
+   
     int ret = (int)ShellExecute(0, "runas", modulename, "", NULL,
                                 SW_SHOWNORMAL);
     if (ret <= 32) {