Question

I have an 32bit application with very large memory requirements.

I noticed that there is something called Address Windowing Extension.

However I haven’t found much information in regards to how to use it and also what disadvantages and problems one might run into while using this?

Answer 1

• It shouldn’t work on versions of Windows at 64bits (read here http://msdn.microsoft.com/en-us/library/aa366778.aspx Intel and AMD’s specification of PAE does support the x86-64 architecture but the software layer of Microsoft’s PAE (the API), called AWE, is not supported on 64 bit editions of Windows, so Windows Vista 64 bit cannot attribute more than 4 GiB of RAM for a 32 bit application.).
• Even on Windows 32 bits there is a “license” limit on the amount of memory usable (same page shows all the limits).
• And clearly it’s complex to program 🙂 It’s like using EMS on the old 8086.