diff --git a/src_main/system/piprocess.cpp b/src_main/system/piprocess.cpp
index fb800b92..9d2906ec 100755
--- a/src_main/system/piprocess.cpp
+++ b/src_main/system/piprocess.cpp
@@ -86,8 +86,8 @@ void PIProcess::startProc(bool detached) {
 		str = args[i];
 		a[as] = '"';
 		memcpy(&a[as + 1], str.data(), str.lengthAscii());
-		a[as + str.length() + 1] = '"';
-		as += str.length() + 3;
+		a[as + str.lengthAscii() + 1] = '"';
+		as += str.lengthAscii() + 3;
 	}
 	a[as - 1] = 0;
 	//piCout << a;
@@ -95,9 +95,9 @@ void PIProcess::startProc(bool detached) {
 	char * a[args.size_s() + 1];
 	for (int i = 0; i < args.size_s(); ++i) {
 		str = args[i];
-		a[i] = new char[str.size() + 1];
-		memcpy(a[i], str.data(), str.lengthAscii());
-		a[i][str.size()] = 0;
+		a[i] = new char[str.lengthAscii() + 1];
+		memcpy(&a[i], str.data(), str.lengthAscii());
+		a[i][str.lengthAscii()] = 0;
 		//cout << a[i] << endl;
 	}
 	a[args.size_s()] = 0;
@@ -108,7 +108,7 @@ void PIProcess::startProc(bool detached) {
 		str = env[i];
 		e[i] = new char[str.size() + 1];
 		memcpy(e[i], str.data(), str.lengthAscii());
-		e[i][str.size()] = 0;
+		e[i][str.lengthAscii()] = 0;
 		//cout << e[i] << endl;
 	}
 	e[env.size_s()] = 0;