How's that supposed to help, if you don't have the source for main?
You really want your DLL to load at 0x30000000. What happens if some other vendor also wants that address space? At that point, if you're writing a library, and you haven't made yours address indifferent, the end user is screwed. He can't use both. I would like you stated indirectly as well probably never use that kind of IPC for shrink-wrapped software. In my project I have all the source and all the control, the end user can't touch anything but some gui which starts up if he presses the power button I deliver to him together with all other hardware. For me is the performance the critical point which forces me to use
Eric J. Holtman wrote: the fixed base address kind of shared memory. And the main problem is windows with it's (apparent?) non-configurable DLL delay load relocation address algorithm. Best Regards Joerg