@SLV:
I guess you are posting in answer to my question about the post from "Snatch" above. ("process address space so 400000 to 600000 or so usually")

But when I run "GetSystemInfo" I get:

lpMinimumApplicationAddress = 00010000h
lpMinimumApplicationAddress = 7FFFFFFFh

But this is something I really don't need this API for since it will be the same for all home computers and workstations and for 99.99% of the servers. It is also no answer to the initial question posted by "MarkusO".