Converting 32 bit app to 64 bit

[perlfan]

Hi,

the problem I currently have is that people interested in my 32 bit Access app complain because they cannot install/run it with Office 64 bit. Is it possible to simply convert my 32 bit app to an 64 bit app by opening and saving it under Office 64 bit? Or how does the conversion work?

Thanks for help - FRANK

 

[CJ_London]

You need to save your 32bit app in a 64bit environment. Ideally compile the vba to make sure all the code is relevant - certainly required if you are supplying an .accde

If you are using API's then you need to modify their call to include PtrSafe i.e. Public Declare PtrSafe Function.....

 

[perlfan]

OK - do you have any experiences with deploying a 32 bit and 64 bit application? Is it possible to run win 32 bit + office 32 bit and win 64 bit + office 64 bit on one PC?

 

[CJ_London]

I do, several of my clients use 64bit office.

Is it possible to run win 32 bit + office 32 bit and win 64 bit + office 64 bit on one PC?

You might be able to partition the drive, but my understanding is W7 and later doesn't like partitions very much. Access is only concerned about 32/64 bit office.

I use different machines set up in different ways to test rather than trying to do it all on one pc.

My recommendation is to stick with 32bit access which will run on a 64bit windows machine and 32bit office

 

[perlfan]

Well, every now and then there are users who can't install (and buy) the application because they have 64 bit office installed. Microsoft says that pre-installed office is by default always 32 bit, even on 64 bit OS, but I doubt that all these people install 64 bit on purpose/on their own. So I'll be loosing more and more I guess if I do not offer my app as 64 bit version too. So it seems as if I would have to set up another PC with 64 bit OS and office. Thank you!

 

[Galaxiom]

No need to buy more hardware. Set up a virtual machine on your existing computer for the other install.