diff --git a/checkin_notes b/checkin_notes
index 0266e133c4..be11f4b66b 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -374,3 +374,12 @@ David  8 June 2007
 		uc2.C,h
 		uc2_graphics.C
 
+David  13 June 2007
+	- wrapper: set thread priority of worker processes
+		to IDLE class (Win);
+		set prior of worker processes to PROCESS_IDLE_PRIORITY (Unix)
+
+	uppercase/
+		upper_case.C
+	wrapper/
+		wrapper.C
diff --git a/uppercase/upper_case.C b/uppercase/upper_case.C
index ecad4033cf..8e81189d7d 100755
--- a/uppercase/upper_case.C
+++ b/uppercase/upper_case.C
@@ -229,14 +229,6 @@ int main(int argc, char **argv) {
     int i;
     int retval = 0;
 
-    boinc_init_diagnostics(
-        BOINC_DIAG_DUMPCALLSTACKENABLED |
-        BOINC_DIAG_HEAPCHECKENABLED |
-        BOINC_DIAG_MEMORYLEAKCHECKENABLED |
-        BOINC_DIAG_TRACETOSTDERR |
-        BOINC_DIAG_REDIRECTSTDERR
-    );
-
     for (i=0; i<argc; i++) {
         if (!strcmp(argv[i], "-early_exit")) early_exit = true;
         if (!strcmp(argv[i], "-early_crash")) early_crash = true;
diff --git a/wrapper/wrapper.C b/wrapper/wrapper.C
index bc0331912a..7e3f217903 100644
--- a/wrapper/wrapper.C
+++ b/wrapper/wrapper.C
@@ -250,6 +250,7 @@ int TASK::run(int argct, char** argvt) {
     }
     pid_handle = process_info.hProcess;
     thread_handle = process_info.hThread;
+    SetThreadPriority(thread_handle, THREAD_PRIORITY_IDLE);
 #else
     int retval, argc;
     char progname[256], buf[256];
@@ -294,6 +295,7 @@ int TASK::run(int argct, char** argvt) {
         strlcpy(arglist, command_line.c_str(), sizeof(arglist));
         argc = parse_command_line(arglist, argv+1);
         fprintf(stderr, "wrapper: running %s (%s)\n", buf, arglist);
+        setpriority(PRIO_PROCESS, 0, PROCESS_IDLE_PRIORITY);
         retval = execv(buf, argv);
         exit(ERR_EXEC);
     }