InnoSetup: Check oldest version of app and show info message.

Posted by jitm on Stack Overflow See other posts from Stack Overflow or by jitm
Published on 2010-05-17T08:53:21Z Indexed on 2010/05/17 9:00 UTC
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installation

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inno-setup

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installer

Hello, How to check that oldest version of application was installed during process of installation new version? What do I mean? I want before start installation start check process with dialog "please wait", if my installation found old version I can provide dialog "update or delete old and install new". How can I do it? Thanks.

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