Is your custom action supposed to run during both install and uninstall or just install? Also, can you please send us the .AIP (project) file you are using to support at advancedinstaller dot com so we can take a look at its configuration?when I do a new install, it installs fine, and but when I uninstall, it runs uninstall method, then install method b/c install method access an xls in install folder
Most likely this is also caused by the custom action. I can say for sure only after I see your project file.when I do a update install, after uninstall previous version, a dialog pops up saysing "The dialog ErrorDlg has the error style bit set, but is not an error dialog", then install method does not run at all.
Regards,
Cosmin