<p>1.exe doesn't give enough time for me to launch the IDE and attach 1.exe to the debugger to break into.</p>

I assume you have the source to 1.exe (if you're debugging it), then just insert a statement near the beginning that will cause it to hang around long enough to attach a debugger.  ( getch() if you're desperate and it's not interactive. )
After the attach, just skip to the next statement and let it go.