Using more than 4GB memory with a 32 bit Windows.

I'll give you an example,

Avira Antivirus has a HIPS component called "Avira Proactiv", which is not available in 64bit os(7/8.1) due to kernel patching restrictions
also the same case with Comodo Firewall,
effectively any user using any antivirus and firewall in windows 64bit are covered a little less than their 32bit counterparts.

its just one example, but there are many "compatibility" issues like these.
Avira is not available because its developers are not capable of writing 64bit drivers. if you are choosing not to move to 64bit because of avira, maybe you should replace avira with something better. like MSE or McAfee or Norton.

PS: why would MS let some third party patch its kernel? its a security threat.
 
Exactly as said ^^

One must look for reasons to move forward rather than reasons to stay back. If a certain software vendor is not capable of supporting an architecture then one should start looking for alternatives.
I am just waiting for the client OS to go 64 bit only. That has already happened with Server OS.
 
Op you are doing too much for something which has a simple solution. I was in the same situation like yours 2 years ago. I switched from 32 to 64 bit in Dec 2012 after buying 4GB ram and have not faced a SINGLE PROBLEM in anything! Just switch to 64 bit, its about time now.
EDIT: I have used Avira in 64 bit as well, still using in a laptop. It is the free version though.
 
Avira is not available because its developers are not capable of writing 64bit drivers. if you are choosing not to move to 64bit because of avira, maybe you should replace avira with something better. like MSE or McAfee or Norton.

PS: why would MS let some third party patch its kernel? its a security threat.

I'm using the free version of AVira on win 7 x64 Sp1 ultimate .. may be you need to get a new installer of avira AV.
 
Good Discussion. IMHO, especially for 64 bit aware S/W like photoshop, the response you would get would be much better on a 64 bit OS than using a 32 bit version with 32 bit OS.
Depends on specific requirement. But the point of extra memory increasing responsiveness is true and valid.
 
when i switched to x64 OS around 4 years back initially had so issues with software's drivers etc but lot has changed since, frankly haven't faced any issues till date during my journey from x64 XP to Win 7 and now Win 8.1

again 64 bit OS has its advantages / disadvantages may be going through following links will help : link 1 / link 2 / link 3 / link 4 / technet , then again if you are concern with compatibility issues then may be this will help.
 
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