mmap error

I'm trying to compress 1.25GB worth of files in MakeNSISw 2.3 and I get the mmap #12345 error (where it says it can't create that large of a file). I'm wondering if it has to do with the fact that one of the files is 1.08GB in size. I've tried every compression method available with no luck. Any ideas?

Did you search the forums for #12345?

Stu