Hello Sir, We are using gcc 3.4.1 on out development machine and gcc 2.95.3 on our QA machine.I have made an exe on our development machine using the foll cmd. LINK=g++ -shared -fPIC LNFLAGS=-o $(TARGETDIR)/FastDeblob: $(OBJS) $(LINK) -L$(DB2PATH)/lib -ldb2 -ldb2apie $(LNFLAGS) $(TARGETDIR)/FastDeblob $(OBJS) when we moved the same exe on our QA, its giving an error libstdc++.so not found.we have just copied libstdc++.so from dev to QA machine and now its says undefined symbol __eprintf. Can u pls help me? Thanks & Regards Satya VISA - VDPS Development IT Division Basingstoke LONDON +44 1256 89 1541 (O)