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Installer dll question

Posted: 11/27/2013 09:16:55
by William Levra-Juillet (Priority Standard support level)
Joined: 09/05/2013
Posts: 49

Using say, a v2 DLL, is it possible to detect if v1 is installed, or can it only detect stuff about the v2 build of the driver?
(using v1 and v2 as example of course, question applies to any version v3, v4, v5...)

We only have access to v4.0 so far, so can't really test upgrade/downgrade installer scenarios.
Posted: 11/27/2013 09:45:42
by Eugene Mayevski (Team)

No it's not. I told you this in Live chat.

Sincerely yours
Eugene Mayevski
Posted: 11/27/2013 09:50:11
by William Levra-Juillet (Priority Standard support level)
Joined: 09/05/2013
Posts: 49

Thx Eugene,

You told me it can NOT uninstall.
But my question was about detection of installed version (GetModuleStatus)
Posted: 11/27/2013 09:53:50
by Eugene Mayevski (Team)

it can't do anything. Different versions are different products which can co-exist on the system.

Sincerely yours
Eugene Mayevski
Posted: 11/27/2013 09:56:12
by Eugene Mayevski (Team)

I mean different major versions (version 4, version 5 etc).

Sincerely yours
Eugene Mayevski
Posted: 11/28/2013 03:41:02
by Rob Hamflett (Priority Standard support level)
Joined: 11/28/2013
Posts: 3

How do the minor versions interact with each other when installed? If I install say, 1.1 and then 1.2, if I uninstall 1.2, is the driver completely removed or is there anything from 1.1 still left lying around?

Posted: 11/28/2013 03:56:52
by Eugene Mayevski (Team)

The most recent minor update is installed and kept (you can't install 1.1 on top of 1.2). During uninstall there's a special mechanism which prevents removal of the the driver from the system until all applications that installed the driver are uninstalled.

If you install 1.1 and then install 1.2, version 1.1 is overriden by 1.2, it doesn't exist on the computer anymore.

Sincerely yours
Eugene Mayevski



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