Hello, Platform: AIX 5.3 64bit Used gcc: gcc 3.3.3 (32bit) I compiled and linked my application with the option -maix64 (and setting OBJECT_MODE=64). When I run the application, I get the following: read whitepapers compile, link and test with aix and 64bit flags exec(): 0509-036 Cannot load program ./console because of the following errors: 0509-150 Dependent module /home/fmr/workarea/usr/local/lib/libstdc++.a(libstdc++.so.5) could not be loaded. 0509-103 The module has an invalid magic number. Could you help me? Thanks and best regards, Michele Mazza