Hi, I put below Rblas.dll(GotoBLAS2 for Win64). http://prs.ism.ac.jp/~nakama/SurviveGotoBLAS2/binary/windows/x64/Rblas.dll It's a tryal phase. -- EI-JI Nakama <nakama (a) ki.rim.or.jp> "\u4e2d\u9593\u6804\u6cbb" <nakama (a) ki.rim.or.jp>