Installation on Windows

The installer is an Inno Setup 6 package (Invoiceflair-Setup-<version>.exe). It asks four things and sets up the rest itself.

What the wizard asks

Page	Content
Target directory	default C:\Program Files\Invoiceflair\Portal
Data directory	default <target directory>\data. May sit outside the program directory; it is created with write permission for the service account
Network and encryption	the HTTP port (default 5060), optionally HTTPS with your own certificate (PFX/PKCS#12 + password, default port 5061), the public address
Email dispatch	SMTP server, port (default 587), user name, password, sender address — can be skipped

The data directory should sit outside the program directory

It then does not fall with the program on uninstallation — and the backup only needs to know one path. See Data and backup.

What the installer creates itself

• the service Invoiceflair — autostart, restart after a crash at 60-second intervals
• the firewall rules Invoiceflair (HTTP) and (HTTPS)
• appsettings.Production.json in the target directory
• the data directory

The Start-menu shortcut points to the URL, not to the .exe

Double-clicking the program file would start a second, competing instance.

The health gate after startup

Finally the installer polls http://127.0.0.1:<port>/health up to 20 times and only reports success once the answer contains Healthy.

Why this check is built in

Without it, setup reported success while the service had crashed on startup — a port already in use, an unreadable certificate. That is the most common form of a “successful” installation that is not running.

If the service does not answer, the installer points to <target directory>\logs.

Afterwards

1. First run — create the first administrator account
2. Configuration — if anything needs adjusting
3. For unattended installation and updates: Silent installation, updating, uninstalling