Setting Minor or Major Upgrade within InstallScript Project - installshield

Question

I'm using InstallShield 2012 Spring - Premier Edition and I'm trying to replace the existing install of our software (if it exists) with whatever is in the new Setup script when Setup script is run again.
I have read some things online that say to configure Minor and Major upgrade settings.
I have an InstallScript Project and I cannot find how to do Minor and Major upgrades, like it can be done with Basic MSI projects. I read online that this can be done with MSI projects by going to Installation Designer and then Media/Upgrades and then configure the upgrade. This option is not available within InstallScript projects.
What can I use with InstallScript projects to change this behavior? Thank you in advance.

Answer 1

I believe you need to add a few more event handlers to your main script. To start, you'll need to add the following handlers if they're not already present:
OnShowUI
OnUpdateUIBefore
OnUpdateUIAfter
OnMaintUIBefore
OnMaintUIAfter
The important thing is to have OnShowUI in order to run the appropriate "Before" method. Below is what I do; you'll need to do whatever you need to do in the other methods (mine are pretty domain-specific and I can't provide those directly).
//---------------------------------------------------------------------------
// OnShowUI
//
// This function drives the UI sequence and file transfer of the setup.
//
// The OnShowUI event is called directly by the framework to initiate
// the UI sequence and file transfer of the setup. By default this event
// displays UI that informs the end user that the maintenance setup has been
// completed successfully.
//---------------------------------------------------------------------------
function OnShowUI()
BOOL bMaintenanceMode, bUpdateMode;
string szIgnore, szTitle;
LIST listDirs;
number nFindAllDirsResult, nFindAllFilesResult;
BOOL lDirEmpty;
begin
// Enable dialog caching
Enable( DIALOGCACHE );
// Determine what events to show
bUpdateMode = FALSE;
bMaintenanceMode = FALSE;
// Remove this to disabled update mode
if (UPDATEMODE) then
// checking to make sure app still exists in orig location
if Is(PATH_EXISTS, TARGETDIR) then
// Also check for empty TargetDir
lDirEmpty = IsTargetDirEmpty();
if (lDirEmpty) then
// TARGETDIR is completely empty, so disable UPDATE mode
bUpdateMode = FALSE;
else
// TARGETDIR has some contents, so continue with UPDATE
bUpdateMode = TRUE;
endif;
else
// Turn off Update mode if original folder is gone
bUpdateMode = FALSE;
endif;
if (!bUpdateMode) then
// If Update mode is set but the original target is missing
// need to flag the installer to force full reinstall (otherwise it will
// think all features have already been installed (by analyzing the log))
FeatureReinstall();
endif;
endif;
// Remove this to disable maintenance mode.
if (MAINTENANCE) then
// checking to make sure app still exists in orig location
if Is(PATH_EXISTS, TARGETDIR) then
// Also check for empty TargetDir
lDirEmpty = IsTargetDirEmpty();
if (lDirEmpty) then
// TARGETDIR is completely empty, so disable Maint mode
bMaintenanceMode = FALSE;
else
// TARGETDIR has some contents, so continue with Maint
bMaintenanceMode = TRUE;
endif;
else
// Turn off maintenance mode if original folder is gone
bMaintenanceMode = FALSE;
endif;
if (!bMaintenanceMode) then
// If Maintenance mode is set but the original target is missing
// need to flag the installer to force full reinstall (otherwise it will
// think all features have already been installed (by analyzing the log))
FeatureReinstall();
endif;
endif;
// Show appropriate UI
if( bUpdateMode ) then
OnUpdateUIBefore();
else
if ( bMaintenanceMode ) then
OnMaintUIBefore();
else
OnFirstUIBefore();
endif;
endif;
// Move Data
OnMoveData();
if( bUpdateMode ) then
OnUpdateUIAfter();
else
if ( bMaintenanceMode ) then
OnMaintUIAfter();
else
OnFirstUIAfter();
endif;
endif;
// Disable dialog caching
Disable(DIALOGCACHE);
end;
I will say that in the OnUpdateUIBefore, I commented out the following code:
// Check whether the update is needed.
if( nResult = VERSION_COMPARE_RESULT_SAME ) then
// Note: This result should occur only for differential media, since the setup
// will display OnMaintUIBefore or OnFirstUIBefore by default if the versions match
// for full setup media.
szMsg = SdLoadString( IDS_IFX_WARNING_UPDATE_NOT_NEEDED );
SdSubstituteProductInfo( szMsg );
if( MessageBox( szMsg, MB_ICONEXCLAMATION | MB_YESNO ) != IDYES ) then
abort;
endif;
endif;
I don't remember why, but I suspect it was causing the Update mode to not work as I expected.
I automate my Installshield builds (via COM--see this answer for basic info if interested) and part of that process involves incrementing the minor version in order to trigger Update Mode when the new installer is ran against an older version.
Good luck!