ASLR and Windows System DLLs for non-aware executables?

Question

From a Microsoft article:

Address Space Layout Randomization (ASLR)

ASLR moves executable images into random locations when a system b

Answer 1

Technically whether the system dlls get relocated or not, it shouldn't matter, as the linker will bind to symbols, not addresses. These symbols are resolved by the runtime loader into to addresses for the instanced system dlls, thus your binary should be none the wiser. From what i've seen however, windows 7 will reset the base randomization every reboot, including system dlls(note: this is from debuging WOW64 apps on widows server 2008 R2). You can also do a system wide disabling of ASLR via some registery edits, but thats not really relevant...

Update:

the section on ASLR in this article explains what gets relocated and when. it doesn't mention if the base will reset every reboot, but for system dlls, its never going to be guaranteed to load at the same address twice, reboot or no reboot. the important thing is according to article, everything needs to opt-in to ASLR for system dll's to be relocated.