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MS Access Forum / ActiveX Controls / March 2005mscomct2.ocx
Is it possible that different versions of the Windows common control can cause problems in a network-environment? regards reidarT Different versions of any .ocx or .dll can cause problems if you've used version-specific features in your application. For example, if your code uses a feature available in Version 7.1.02 and the user only has version 6.5.00, then your code will fail. To avoid these items, make sure that you develop to the "lowest common denominator" and that you throughly test your application on a machine that has the minimum requirements installed. For example, if you intend to only support version 7.1.02 of MyCoolStuff.dll, then make sure your test environment includes that file (and not later versions). Then, when installing your application, check to ensure that your users have this version (or a later one, assuming compatibility between versions) ... if they dont' have the minimum required version of MyCoolStuff.dll, then inform them of this and take appropriate action (abort the install, install the new DLL, whatever is best in your scenario). > Is it possible that different versions of the Windows common control can > cause problems > in a network-environment? > regards > reidarT Yes, what he said. you specifically mention the common control library - I first encountered problems with this when I was developing a database on a machine that had service pack 2 installed (Windows XP), and found that the library was updated in this service pack - at least that is what I think. So definitely follow Scotts advice, and always prepare for the lowest common denominator. Testing is a must in a networked environment, if possible you should always test on each platform the application will be used on. Further to that, I would outline the platforms the application has been tested on to your client, and advise them that if they plan to let anybody further access it, you will need to test it on their setups first. Cheers John Webb |
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