diff --git a/2.x/trunk/ProcessHacker/include/ph.h b/2.x/trunk/ProcessHacker/include/ph.h
index 519cd0625..8648166a9 100644
--- a/2.x/trunk/ProcessHacker/include/ph.h
+++ b/2.x/trunk/ProcessHacker/include/ph.h
@@ -879,6 +879,7 @@ typedef struct _PH_THREAD_ITEM
     PH_SYMBOL_RESOLVE_LEVEL StartAddressResolveLevel;
     KWAIT_REASON WaitReason;
     LONG PriorityWin32;
+    PPH_STRING PriorityWin32String;
 
     HANDLE ThreadHandle;
 
@@ -889,7 +890,6 @@ typedef struct _PH_THREAD_ITEM
     PPH_STRING CyclesDeltaString;
 
     WCHAR ThreadIdString[PH_INT32_STR_LEN_1];
-    PWSTR PriorityWin32String;
 } PH_THREAD_ITEM, *PPH_THREAD_ITEM;
 
 typedef struct _PH_THREAD_PROVIDER
diff --git a/2.x/trunk/ProcessHacker/procprp.c b/2.x/trunk/ProcessHacker/procprp.c
index b077be56b..bad795d0a 100644
--- a/2.x/trunk/ProcessHacker/procprp.c
+++ b/2.x/trunk/ProcessHacker/procprp.c
@@ -864,7 +864,7 @@ INT_PTR CALLBACK PhpProcessThreadsDlgProc(
                 threadItem
                 );
             PhSetListViewSubItem(lvHandle, lvItemIndex, 2, PhGetString(threadItem->StartAddressString));
-            PhSetListViewSubItem(lvHandle, lvItemIndex, 3, threadItem->PriorityWin32String);
+            PhSetListViewSubItem(lvHandle, lvItemIndex, 3, PhGetString(threadItem->PriorityWin32String));
         }
         break;
     case WM_PH_THREAD_MODIFIED:
@@ -878,7 +878,7 @@ INT_PTR CALLBACK PhpProcessThreadsDlgProc(
             {
                 PhSetListViewSubItem(lvHandle, lvItemIndex, 1, PhGetString(threadItem->CyclesDeltaString));
                 PhSetListViewSubItem(lvHandle, lvItemIndex, 2, PhGetString(threadItem->StartAddressString));
-                PhSetListViewSubItem(lvHandle, lvItemIndex, 3, threadItem->PriorityWin32String);
+                PhSetListViewSubItem(lvHandle, lvItemIndex, 3, PhGetString(threadItem->PriorityWin32String));
             }
         }
         break;
diff --git a/2.x/trunk/ProcessHacker/resource.h b/2.x/trunk/ProcessHacker/resource.h
index 354cf0646..003435959 100644
--- a/2.x/trunk/ProcessHacker/resource.h
+++ b/2.x/trunk/ProcessHacker/resource.h
@@ -32,6 +32,9 @@
 #define IDC_PROCGENERAL_FILENAME        1020
 #define IDC_PROCGENERAL_CMDLINE         1021
 #define IDC_PROCGENERAL_CURDIR          1022
+#define ID_MAINWND_PROCESSLV            2001
+#define ID_MAINWND_SERVICELV            2002
+#define ID_MAINWND_NETWORKLV            2003
 #define ID_HACKER_EXIT                  40001
 #define ID_USERS                        40002
 #define ID_TOOLS                        40003
diff --git a/2.x/trunk/ProcessHacker/thrdprv.c b/2.x/trunk/ProcessHacker/thrdprv.c
index fea6bbc63..b768460b6 100644
--- a/2.x/trunk/ProcessHacker/thrdprv.c
+++ b/2.x/trunk/ProcessHacker/thrdprv.c
@@ -325,6 +325,7 @@ VOID PhpThreadItemDeleteProcedure(
 
     if (threadItem->ThreadHandle) CloseHandle(threadItem->ThreadHandle);
     if (threadItem->StartAddressString) PhDereferenceObject(threadItem->StartAddressString);
+    if (threadItem->PriorityWin32String) PhDereferenceObject(threadItem->PriorityWin32String);
     if (threadItem->ContextSwitchesDeltaString) PhDereferenceObject(threadItem->ContextSwitchesDeltaString);
     if (threadItem->CyclesDeltaString) PhDereferenceObject(threadItem->CyclesDeltaString);
 }
@@ -492,28 +493,30 @@ PPH_STRING PhpGetThreadBasicStartAddress(
     return symbol;
 }
 
-PWSTR PhpGetPriorityWin32String(
+PPH_STRING PhpGetPriorityWin32String(
     __in LONG PriorityWin32
     )
 {
     switch (PriorityWin32)
     {
     case THREAD_PRIORITY_TIME_CRITICAL:
-        return L"Time Critical";
+        return PhCreateString(L"Time Critical");
     case THREAD_PRIORITY_HIGHEST:
-        return L"Highest";
+        return PhCreateString(L"Highest");
     case THREAD_PRIORITY_ABOVE_NORMAL:
-        return L"Above Normal";
+        return PhCreateString(L"Above Normal");
     case THREAD_PRIORITY_NORMAL:
-        return L"Normal";
+        return PhCreateString(L"Normal");
     case THREAD_PRIORITY_BELOW_NORMAL:
-        return L"Below Normal";
+        return PhCreateString(L"Below Normal");
     case THREAD_PRIORITY_LOWEST:
-        return L"Lowest";
+        return PhCreateString(L"Lowest");
     case THREAD_PRIORITY_IDLE:
-        return L"Idle";
+        return PhCreateString(L"Idle");
+    case THREAD_PRIORITY_ERROR_RETURN:
+        return NULL;
     default:
-        return L"";
+        return PhFormatString(L"%d", PriorityWin32);
     }
 }
 
@@ -889,7 +892,12 @@ VOID PhThreadProviderUpdate(
 
                 if (threadItem->PriorityWin32 != oldPriorityWin32)
                 {
-                    threadItem->PriorityWin32String = PhpGetPriorityWin32String(threadItem->PriorityWin32);
+                    PPH_STRING priorityWin32String;
+
+                    priorityWin32String = PhpGetPriorityWin32String(threadItem->PriorityWin32);
+                    PhSwapReference(&threadItem->PriorityWin32String, priorityWin32String);
+                    PhDereferenceObject(priorityWin32String);
+
                     modified = TRUE;
                 }
             }