diff --git a/libs/main/core/pistring.cpp b/libs/main/core/pistring.cpp
index 521b7d35..8ac3c188 100644
--- a/libs/main/core/pistring.cpp
+++ b/libs/main/core/pistring.cpp
@@ -205,17 +205,18 @@ void PIString::appendFromChars(const char * c, int s, const char * codepage) {
 	UErrorCode e((UErrorCode)0);
 	UConverter * cc = ucnv_open(codepage, &e);
 	if (cc) {
-		UChar * ucs = new UChar[s];
-		memset(ucs, 0, s * sizeof(UChar));
+		resize(s);
+//		UChar * ucs = new UChar[s];
+//		memset(ucs, 0, s * sizeof(UChar));
 		e = (UErrorCode)0;
-		sz = ucnv_toUChars(cc, ucs, s, c, s, &e);
+		sz = ucnv_toUChars(cc, (UChar*)(PIDeque<PIChar>::data()), s, c, s, &e);
 		//printf("appendFromChars %d -> %d\n", s, sz);
 		//printf("PIString %d -> %d\n", c[0], ucs[0]);
-		reserve(size_s() + sz);
-		for (int i = 0; i < sz; ++i) {
-			push_back(PIChar((ushort)ucs[i]));
-		}
-		delete[] ucs;
+		resize(sz);
+//		for (int i = 0; i < sz; ++i) {
+//			push_back(PIChar((ushort)ucs[i]));
+//		}
+//		delete[] ucs;
 		ucnv_close(cc);
 		return;
 	}
@@ -332,21 +333,24 @@ void PIString::buildData(const char * cp) const {
 	UErrorCode e((UErrorCode)0);
 	UConverter * cc = ucnv_open(cp, &e);
 	if (cc) {
-		char uc[8];
-		data_.reserve(size_s());
-		for (int i = 0; i < size_s(); ++i) {
-			if (at(i).isAscii()) {
-				data_.push_back(uchar(at(i).unicode16Code()));
-			} else {
-				e = (UErrorCode)0;
-				sz = ucnv_fromUChars(cc, uc, 8, (const UChar*)(PIDeque<PIChar>::data(i)), 1, &e);
-				for (int j = 0; j < sz; ++j) {
-					data_.push_back(uc[j]);
-				}
-			}
-		}
+		const size_t len = MB_CUR_MAX*size()+1;
+		data_ = (char *)malloc(len);
+		sz = ucnv_fromUChars(cc, data_, len, (const UChar*)(PIDeque<PIChar>::data()), size_s(), &e);
+//		char uc[8];
+//		data_.reserve(size_s());
+//		for (int i = 0; i < size_s(); ++i) {
+//			if (at(i).isAscii()) {
+//				data_.push_back(uchar(at(i).unicode16Code()));
+//			} else {
+//				e = (UErrorCode)0;
+//				for (int j = 0; j < sz; ++j) {
+//					data_.push_back(uc[j]);
+//				}
+//			}
+//		}
 		ucnv_close(cc);
-		data_.push_back('\0');
+		data_[sz] = '\0';
+//		data_.push_back('\0');
 		return;
 	}
 #else
diff --git a/libs/main/system/piprocess.cpp b/libs/main/system/piprocess.cpp
index 6faf7b5e..a8ba7251 100644
--- a/libs/main/system/piprocess.cpp
+++ b/libs/main/system/piprocess.cpp
@@ -205,7 +205,7 @@ void PIProcess::startProc(bool detached) {
 		if (execve(str.data(), (char * const *)argscc, (char * const *)envcc) < 0)
 			piCoutObj << "\"execve" << str << args << "\" error :" << errorString();
 	} else {
-		piMinSleep;
+		piMinSleep();
 		//cout << "wait" << endl;
 		if (!detached) {
 			wait(&exit_code);