diff --git a/alpha/help/Command_par2j.txt b/alpha/help/Command_par2j.txt
index f80930d..1485ecc 100644
--- a/alpha/help/Command_par2j.txt
+++ b/alpha/help/Command_par2j.txt
@@ -1,4 +1,4 @@
-[ par2j.exe - version 1.3.2.8 or later ]
+[ par2j.exe - version 1.3.3.0 or later ]
 
 Type "par2j.exe" to see version, test integrity, and show usage below.
 
@@ -359,19 +359,22 @@ the protected archive file is made in the directory.
  /lc :
  Set this, if you want to set number of using threads for Multi-Core CPU,
 or want to disable extra feature. (SSE2 is always used.)
-The format is "/lc#", # is from 1 to 11 as the number of using threads,
-12 to use quarter number of physical Cores,
-13 to use half of physical Cores,
-14 to use 3/4 number of physical Cores,
-15 to use the number of physical Cores (disable Hyper Threading),
-or 15 to use one less number of physical Cores on CPU with 6 or more physical Cores.
-Without this option (or /lc0),
-it uses the number of physical Cores on CPU with 6 or more physical Cores,
-or one more threads on CPU with Hyper Threading and 5 or less physical Cores.
+The format is "/lc#" (# is from 1 to 32 as the number of using threads).
 
- You may set additional combinations; +16 to disable SSSE3,
-+128 to disable CLMUL, +256 to disable JIT, +512 to disable AVX2,
-+32 or +64 (slower device) to enable GPU acceleration.
+ It's possible to set by rate as following. (It's /lc0 by default.)
+251: It uses quarter number of physical Cores.
+252: It uses half of physical Cores.
+253: It uses 3/4 number of physical Cores.
+254: It uses one less threads than number of physical Cores.
+  0: It uses the number of physical Cores.
+255: It uses one more threads than number of physical Cores.
+
+ You may set additional combinations;
++1024 to disable CLMUL (and use old SSSE3 code), 
++2048 to disable JIT (for SSE2), 
++4096 to disable SSSE3,
++8192 to disable AVX2,
++256 or +512 (slower device) to enable GPU acceleration.
 
  for example,  /lc1 to use single Core, /lc45 to use half Cores and GPU