Packages are installed repeatedly
Summary
Despite successful installation, packages are installed again during each or each second polling interval.
Goal
In this How-to article are described how you can avoid re-installation.
First Step
The cause for this problem may be, an identical path has been entered in the file 'setup.inf' for two packages under "ApplicationDir" during each polling interval.
The system detects, that the setup.inf file does not match the package and therefore performs a reinstallation. In most cases, this affects two packages alternately.
Second Step
Another cause may be a version number in the [Application] section of the setup.inf file, which starts with a letter (see SetupENU.chm).
Another possibility may be the “always force” option is enabled and repeated installation has been scheduled.