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It really stuck home today how much 64bit is a big deal.

Our strategy is to move forward to 64bit in one of our companies as its pretty much ‘brown field’ after recent acquisition. Forward thinking requires our decisions to have a little extra longevity specially if you are making a sizable investment, we want ours moneys worth, so, the ‘bang for buck’ ratio comes into play so therefore 64bit is a clear winner.

So this morning I discovered two 16bit applications with 400 users. The 16bit applications will happily play in a 32bit environment, infact no-one's the wiser unless they use task manager and see what program is running under ‘wowexec’. But 16bit applications will not run under 64bit. So these applications will need to be recompiled to 32bit or rewritten.

As the code is 10 years old and written in VB3 I made the decision to re-write the applications using the existing applications as the template and business requirement.

Anyway it dawned on me that 64bit will generate a sizable wave in the industry and it may be time for you to find out what is running under wowexec now so you can make your plan.

Posted on Tuesday, December 20, 2005 1:05 PM Main | Back to top

Comments on this post: On the road to 64bit

# re: On the road to 64bit
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I'm not sure if a 32-bit OS running as a guest under Virtual Server 2005 R2 or VMWare on a 64-bit host will support 16-bit code. I'd hope so. That may not help you since this is presumably a client-side app, unless you write something server-side to drive the app. Sounds barmy, I know, but I've heard of people screen-scraping legacy apps to provide new services.

Virtual Server 2005 R2 is now on MSDN Subscriber Downloads (finally!) so you can see for yourself. I don't have any 64-bit hardware and there's only one x64 machine at my company, which is a developer's workstation running 32-bit Windows XP (and I'm not going back until the new year anyway).
Left by Mike Dimmick on Dec 20, 2005 2:23 PM

# re: On the road to 64bit
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You only have to look at some of the potential for user numbers under Citrix/TS running in x64 and you can see that it *might* be possible to run a 1500 - 2000 user Citrix Server farm in something like 4U's of rack space - how cool is that?
Left by Dave Caddick on Dec 21, 2005 7:57 PM

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