diff --git a/kernel/trunk/const.inc b/kernel/trunk/const.inc
index 3636518ae3..b65429e0be 100644
--- a/kernel/trunk/const.inc
+++ b/kernel/trunk/const.inc
@@ -17,6 +17,11 @@ cpl3    =  11111010b      ; code read dpl3
 D32     =  01000000b      ; 32bit segment
 G32     =  10000000b      ; page gran
 
+;;;;;;;;;;; task manager errors ;;;;;;;;;;
+
+ERROR_OUT_OF_MEMORY      = 30 ; 0x1E
+ERROR_NOT_A_EXECUTABLE   = 31 ; 0x1F
+ERROR_TOO_MANY_PROCESSES = 32 ; 0x20
 
 ;;;;;;;;;;;;cpu_caps flags;;;;;;;;;;;;;;;;
 
diff --git a/kernel/trunk/core/taskman.inc b/kernel/trunk/core/taskman.inc
index cd031a5545..e7c4695688 100644
--- a/kernel/trunk/core/taskman.inc
+++ b/kernel/trunk/core/taskman.inc
@@ -115,13 +115,13 @@ proc fs_execute
         mov     [file_size], ebx
         lea     ebx, [hdr_cmdline]
         call    test_app_header  ; fill our app header data locals with values from header of given program (if its correct)
-        mov     esi, -0x1F
+        mov     esi, -ERROR_NOT_A_EXECUTABLE
         test    eax, eax
         jz      .err_hdr
 
         call    lock_application_table
         call    alloc_thread_slot   ; create a slot for new thread
-        mov     esi, -0x20  ; too many processes
+        mov     esi, -ERROR_TOO_MANY_PROCESSES
         test    eax, eax
         jz      .err_0
 
@@ -163,7 +163,7 @@ proc fs_execute
 @@:
         mov     [cmdline_size], eax
         stdcall create_process, [hdr_emem]  ; create a new process
-        mov     esi, -30    ; no memory
+        mov     esi, -ERROR_OUT_OF_MEMORY
         test    eax, eax
         jz      .err_hdr
 
diff --git a/kernel/trunk/fs/fs_lfn.inc b/kernel/trunk/fs/fs_lfn.inc
index be38a520d0..78d7a9e829 100644
--- a/kernel/trunk/fs/fs_lfn.inc
+++ b/kernel/trunk/fs/fs_lfn.inc
@@ -19,7 +19,6 @@ ERROR_DISK_FULL      = 8
 ERROR_FS_FAIL        = 9
 ERROR_ACCESS_DENIED  = 10
 ERROR_DEVICE         = 11
-ERROR_OUT_OF_MEMORY  = 12
 
 maxPathLength = 1000h