diff --git a/src/main/c/Android/jni/SerialPort_Android.c b/src/main/c/Android/jni/SerialPort_Android.c
index eef803e..753d6e3 100644
--- a/src/main/c/Android/jni/SerialPort_Android.c
+++ b/src/main/c/Android/jni/SerialPort_Android.c
@@ -2,7 +2,7 @@
  * SerialPort_Android.c
  *
  *       Created on:  Mar 13, 2015
- *  Last Updated on:  Oct 15, 2019
+ *  Last Updated on:  Oct 29, 2019
  *           Author:  Will Hedgecock
  *
  * Copyright (C) 2012-2019 Fazecast, Inc.
@@ -612,7 +612,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetRTS(JN
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the RTS mode of the serial port
-	char commandString[64];
+	char commandString[128];
 	sprintf(commandString, "stty -F %s hupcl >>/dev/null 2>&1", portName);
 	int result = system(commandString);
 
@@ -626,7 +626,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearRTS(
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the RTS mode of the serial port
-	char commandString[64];
+	char commandString[128];
 	sprintf(commandString, "stty -F %s -hupcl >>/dev/null 2>&1", portName);
 	int result = system(commandString);
 
@@ -656,7 +656,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetDTR(JN
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the DTR mode of the serial port
-	char commandString[64];
+	char commandString[128];
 	sprintf(commandString, "stty -F %s hupcl >>/dev/null 2>&1", portName);
 	int result = system(commandString);
 
@@ -670,7 +670,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearDTR(
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the DTR mode of the serial port
-	char commandString[64];
+	char commandString[128];
 	sprintf(commandString, "stty -F %s -hupcl >>/dev/null 2>&1", portName);
 	int result = system(commandString);
 
diff --git a/src/main/c/Posix/SerialPort_Posix.c b/src/main/c/Posix/SerialPort_Posix.c
index 18df503..bce9719 100644
--- a/src/main/c/Posix/SerialPort_Posix.c
+++ b/src/main/c/Posix/SerialPort_Posix.c
@@ -2,7 +2,7 @@
  * SerialPort_Posix.c
  *
  *       Created on:  Feb 25, 2012
- *  Last Updated on:  Oct 15, 2019
+ *  Last Updated on:  Oct 29, 2019
  *           Author:  Will Hedgecock
  *
  * Copyright (C) 2012-2019 Fazecast, Inc.
@@ -722,7 +722,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetRTS(JN
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the RTS mode of the serial port
-	char commandString[64];
+	char commandString[128];
 #if defined(__linux__)
 	sprintf(commandString, "stty -F %s hupcl >>/dev/null 2>&1", portName);
 #else
@@ -740,7 +740,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearRTS(
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the RTS mode of the serial port
-	char commandString[64];
+	char commandString[128];
 #if defined(__linux__)
 	sprintf(commandString, "stty -F %s -hupcl >>/dev/null 2>&1", portName);
 #else
@@ -774,7 +774,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetDTR(JN
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the DTR mode of the serial port
-	char commandString[64];
+	char commandString[128];
 #if defined(__linux__)
 	sprintf(commandString, "stty -F %s hupcl >>/dev/null 2>&1", portName);
 #else
@@ -792,7 +792,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearDTR(
 	const char *portName = (*env)->GetStringUTFChars(env, portNameJString, NULL);
 
 	// Send a system command to preset the DTR mode of the serial port
-	char commandString[64];
+	char commandString[128];
 #if defined(__linux__)
 	sprintf(commandString, "stty -F %s -hupcl >>/dev/null 2>&1", portName);
 #else
diff --git a/src/main/c/Windows/SerialPort_Windows.c b/src/main/c/Windows/SerialPort_Windows.c
index fbb8862..c5e061a 100644
--- a/src/main/c/Windows/SerialPort_Windows.c
+++ b/src/main/c/Windows/SerialPort_Windows.c
@@ -2,7 +2,7 @@
  * SerialPort_Windows.c
  *
  *       Created on:  Feb 25, 2012
- *  Last Updated on:  Oct 15, 2019
+ *  Last Updated on:  Oct 29, 2019
  *           Author:  Will Hedgecock
  *
  * Copyright (C) 2012-2019 Fazecast, Inc.
@@ -803,7 +803,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetRTS(JN
 	int result = -1;
 	if (comPort != NULL)
 	{
-		char commandString[32];
+		char commandString[64];
 		sprintf(commandString, "cmd.exe /C \"MODE %s rts=on > nul 2>&1\"", comPort + 1);
 		result = system(commandString);
 	}
@@ -822,7 +822,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearRTS(
 	int result = -1;
 	if (comPort != NULL)
 	{
-		char commandString[32];
+		char commandString[64];
 		sprintf(commandString, "cmd.exe /C \"MODE %s rts=off > nul 2>&1\"", comPort + 1);
 		result = system(commandString);
 	}
@@ -857,7 +857,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_presetDTR(JN
 	int result = -1;
 	if (comPort != NULL)
 	{
-		char commandString[32];
+		char commandString[64];
 		sprintf(commandString, "cmd.exe /C \"MODE %s dtr=on > nul 2>&1\"", comPort + 1);
 		result = system(commandString);
 	}
@@ -876,7 +876,7 @@ JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_preclearDTR(
 	int result = -1;
 	if (comPort != NULL)
 	{
-		char commandString[32];
+		char commandString[64];
 		sprintf(commandString, "cmd.exe /C \"MODE %s dtr=off > nul 2>&1\"", comPort + 1);
 		result = system(commandString);
 	}
diff --git a/src/main/resources/Windows/x86/jSerialComm.dll b/src/main/resources/Windows/x86/jSerialComm.dll
index 3c80948..7c3af35 100644
Binary files a/src/main/resources/Windows/x86/jSerialComm.dll and b/src/main/resources/Windows/x86/jSerialComm.dll differ
diff --git a/src/main/resources/Windows/x86_64/jSerialComm.dll b/src/main/resources/Windows/x86_64/jSerialComm.dll
index 2f6aa9e..d559b96 100644
Binary files a/src/main/resources/Windows/x86_64/jSerialComm.dll and b/src/main/resources/Windows/x86_64/jSerialComm.dll differ