diff --git a/api/boinc_api.cpp b/api/boinc_api.cpp
index 63f14e9d94..9f875154e2 100644
--- a/api/boinc_api.cpp
+++ b/api/boinc_api.cpp
@@ -203,7 +203,11 @@ char* boinc_msg_prefix(char* sbuf, int len) {
         strcpy(sbuf, "time() failed");
         return sbuf;
     }
+#ifdef _WIN32
+    if (localtime_s(&tm, &x) == EINVAL) {
+#else
     if (localtime_r(&x, &tm) == NULL) {
+#endif
         strcpy(sbuf, "localtime() failed");
         return sbuf;
     }
diff --git a/checkin_notes b/checkin_notes
index f654e3f175..0659979d79 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -8609,3 +8609,12 @@ David  2 Dec 2010
 
     client/
         rr_sim.cpp
+
+David  2 Dec 2010
+	- client: fix typo that broke communication with account managers
+	- API: compile fix for Win
+
+	client/
+		acct_mgr.cpp
+	api/
+		boinc_api.cpp
diff --git a/client/acct_mgr.cpp b/client/acct_mgr.cpp
index 4d82303b17..483819b86b 100644
--- a/client/acct_mgr.cpp
+++ b/client/acct_mgr.cpp
@@ -151,10 +151,10 @@ int ACCT_MGR_OP::do_rpc(
             "      <hostid>%d</hostid>\n"
             "      <not_started_dur>%f</not_started_dur>\n"
             "      <in_progress_dur>%f</in_progress_dur>\n"
-            "      <attached_via_acct_mgr>%d</attached_via_acct_mgr/>\n"
-            "      <dont_request_more_work>%d</dont_request_more_work/>\n"
-            "      <detach_when_done>%d</detach_when_done/>\n"
-            "      <ended>%d</ended/>\n"
+            "      <attached_via_acct_mgr>%d</attached_via_acct_mgr>\n"
+            "      <dont_request_more_work>%d</dont_request_more_work>\n"
+            "      <detach_when_done>%d</detach_when_done>\n"
+            "      <ended>%d</ended>\n"
             "   </project>\n",
             p->master_url,
             p->project_name,