Hi all, SEH-based exceptions are made the default on the win32 target in fpc-trunk. For win64 they already where the default. To build a compiler without SEH-based exceptions, the dDISABLE_WIN32_SEH option should be given. ie: make all OPT='dDISABLE_WIN32_SEH' Please report any regressions on the bug-tracker. Regards, Joost