I'm currently trying to run an old piece of awkward software from 1986 and it just won't run if there is more than 19mb System Ram.

I tested this under emulation using Basilisk II.

Right now I'm using a PowerBook 190cs and it has 40mb of Ram and when I run the application it just crashes.

I tried installing earlier versions of System 7 to see if it would give me the option to turn off 32-bit Addressing

but the option was not there. I guess the hardware doesn't support it.

My question is are there any solutions for limiting system ram? or compatibility applications that can remedy this problem?

Thanks.