diff --git a/CrashLogger/dllmain.cpp b/CrashLogger/dllmain.cpp
index a5d53de..62c97c6 100644
--- a/CrashLogger/dllmain.cpp
+++ b/CrashLogger/dllmain.cpp
@@ -45,7 +45,7 @@ BOOL APIENTRY DllMain( HMODULE hModule,
         }
         if (!InitDaemonProcess())
             return FALSE;
-        printf("[CrashLogger] CrashLogger loaded.\n");
+        // printf("[CrashLogger] CrashLogger loaded.\n");
         break;
     case DLL_THREAD_ATTACH:
         break;
diff --git a/CrashLogger_Daemon/Debugger.cpp b/CrashLogger_Daemon/Debugger.cpp
index e4c8dc1..00f3ab6 100644
--- a/CrashLogger_Daemon/Debugger.cpp
+++ b/CrashLogger_Daemon/Debugger.cpp
@@ -41,7 +41,7 @@ bool LoadSymbolFiles()
 {
 	wstring symbolPath{ L"srv*C:\\Windows\\symbols*http://msdl.microsoft.com/download/symbols" };
 	FindSymbols(symbolPath,".",false);
-	FindSymbols(symbolPath,".\\plugins", true);
+	FindSymbols(symbolPath,".\\pdb", true);
 
 	if (!SymInitializeW(hProcess_Debug, symbolPath.c_str(), TRUE))
 	{
diff --git a/CrashLogger_Daemon/main.cpp b/CrashLogger_Daemon/main.cpp
index e53459d..b2cac08 100644
--- a/CrashLogger_Daemon/main.cpp
+++ b/CrashLogger_Daemon/main.cpp
@@ -25,7 +25,7 @@ int main(int argc,char **argv)
 		return -1;
 	}
 
-    //printf("[CrashLogger] CrashLogger Daemon Process attached.\n");
+    // printf("[CrashLogger] CrashLogger Daemon Process attached.\n");
 	DebuggerMain(hProcess);
 	return 0;
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index b652698..cb814b5 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,37 @@
 # CrashLogger
-> A dll injected into process to dump stack when crashing.
+> Provide crash listener for any process, and dump stack when the process is crashed.
 
-Support me at [https://www.minebbs.com/resources/crashlogger-pro.2645/](https://www.minebbs.com/resources/crashlogger-pro.2645/)
+## Usage
 
+### Use as a single daemon process
 
-### At Crash
+1. Start the program you want to listen to, and get its ProcessID
+2. Execute in terminal: `CrashLogger_Daemon.exe <ProcessID>`
+3. **Finished.** When the target process crashed, the daemon will dump its stack and output stacktrace to console.
+
+### Work along with  your program
+
+1. Use `LoadLibrary` to load `CrashLogger.dll`.
+2. `CrashLogger.dll` will start `CrashLogger_Daemon.exe` in background and start daemon.
+3. **Finished.** When your process crashed, the daemon will dump its stack and output stacktrace to console.
+
+
+## At Crash
 - Result of stack walk will output both at console and file  `.\logs\Crash\TrackBack_xxxxxxxx_xx-xx-xx.log`
 - Dumpbin database will generate at file `.\logs\Crash\CrashDump_xxxxxxxx_xx-xx-xx.dmp`  
 
 ![image-20210716124312591](asserts/image-20210716124312591.png)
+
+![](asserts/files.png)
+
 - Stack walk can give you a general view of possible problems.
 
-Using CrashDump, Dump files and WinDbg or Visual Studio, you can get more infomation about the crash.
\ No newline at end of file
+Using CrashDump, Dump files and WinDbg or Visual Studio, you can get more infomation about the crash.
+
+## PDB Files
+
+CrashLogger will find PDB files in target process's directory, which contains significant symbol information for stacktrace. So you can put PDBs of your program or the libraries you used into `.\PDB` directory. It will helps a lot.
+
+## Tips
+
+CrashLogger attach to the target program as a debugger to catch unhandled exception and crash. So if another debugger is attached before (like Visual Studio Debugger), CrashLogger will not work.
\ No newline at end of file
diff --git a/asserts/files.png b/asserts/files.png
new file mode 100644
index 0000000..c7a2841
Binary files /dev/null and b/asserts/files.png differ
diff --git a/include/LoggerShareData.h b/include/LoggerShareData.h
index 3be31d1..72bb622 100644
--- a/include/LoggerShareData.h
+++ b/include/LoggerShareData.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #define MACHINE_TYPE IMAGE_FILE_MACHINE_AMD64
-#define DAEMON_PROCESS_PATH L"plugins\\CrashLogger\\CrashLogger_Daemon.exe"
+#define DAEMON_PROCESS_PATH L".\\CrashLogger_Daemon.exe"
 #define TRACKBACK_OUTPUT_PATH "logs\\Crash\\TrackBack_"
 #define DUMP_OUTPUT_PATH "logs\\Crash\\CrashDump_"