my win32 program has been driving me nuts until I realized that the following code:

/* --- console code --- */
import std.regexp;
import std.stdio;

void main() {
	auto r=search("abcdef","c");
	writefln(r[0]);
}
/* --- end of console code --- */

outputs "c" on the console. but the following win32 equivalent:

/* --- windows code --- */
import core.runtime;
import std.regexp;
import std.c.windows.windows;

extern(Windows) void WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow) {
	void exceptionHandler(Throwable e) {
		throw e;
	}
	try {
		Runtime.initialize(&exceptionHandler);
		auto r=search("abcdef","c");
		MessageBoxA(cast(HANDLE)0,cast(char*)r[0],"Alert",0);
		Runtime.terminate(&exceptionHandler);
	}
	catch(Object o) {
		MessageBoxA(cast(HANDLE)0,cast(LPSTR)o.toString(),"Alert",0);
	}
}
/* --- end of windows code --- */

results in "cdef"! also, the compiled win32 program - without the exception handling code - causes windows to crash.