Originally Posted by
IanS
My application is shareware so I suppose it's possible that new trial users hitting a problem would simply go away and try something else
Not just "possible", almost certain.
but there's a lot of existing users many of which will have upgraded to 64 bit versions of Vista and Win7 and so far none of them have come shouting at me.
Not being told is far from a guarantee, the problems may not occur in all situations (it may only be certain features of your app, or depend on other software that is installed, etc), and even those that do have issues may not tell you - they may be willing to live the issue(s) they get (and swear about you in their head, and to their friends), or stop using the program and/or spend money with your competitors.
Is there any information about dao/64-bit compatibility, how to reproduce problems etc ?
The latest "new" information about DAO I've seen from a reliable source (rather than a newbie, or somebody re-posting existing tutorials) is this page from 2002:
http://msdn.microsoft.com/en-us/libr...map_old_topic9
...which includes DAO in the "Obsolete" section, and uses phrases like:
"Do not use these technologies when you write new applications."
"It will not be available on the 64-bit Windows operating system."
The last one (added to the page a few years ago) is very heavy hint that even Microsoft themselves can't get it to work reliably - because they include the VB6 runtimes with 64-bit versions of Windows.
So far my application appears to work just fine in 64bit windows
O-kay.... I'm not sure how that's a good reason to be using a tool that was out of date when VB6 was released way back in 1998.
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