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Thread: Single to multi-instance?

  1. #1
    Join Date
    May 2003
    Location
    Birmingham, West Midlands, England
    Posts
    673

    Single to multi-instance?

    I have created a single-instance, multi-language, InstallScript Setup in DS9.

    Some users have asked for the ability to make multiple installations on the same machine. They say this is to allow them to install software/support for different languages, such as where more than one user shares the same system but uses a different language.

    Is there a way for users to run my single-instance Setup as if it was multi-instance, or am I asking for trouble?

    Thanks,

    David
    Installer Engineer
    David Briggs Software Services

  2. #2
    Join Date
    Dec 2001
    Location
    InstallShield - Schaumburg, IL
    Posts
    723
    The multi-instance option was not designed to be selectable at run time. You could tell them to run Setup.exe with the -ig command line option (as described in the Help Library's Index entry "Setup.exe, command-line parameters")---but this could result in trouble if they specified an invalid or already-used GUID.
    Mark
    InstallShield Software Corporation

  3. #3
    Join Date
    May 2003
    Location
    Birmingham, West Midlands, England
    Posts
    673
    Thanks for that suggestion. I could generate some extra GUIDs for this purpose but it doesn't seem like a good idea.

    I had seen -ig, but there is also some default code to avoid the install directories of previous instances. I migrated my Setup project from IS5.5 through 7 Pro. I don't know whether I will have that code or not. I suspect not as it's in OnFirstUIBefore and I'm sure I would have seen it!

    David
    Installer Engineer
    David Briggs Software Services

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