The Chromeleon license file is a cryptographically signed text file (typically named Chromeleon.lic or license.lic) that unlocks specific features of the software. Unlike modern subscription-based "cloud tokens," Chromeleon traditionally uses a hybrid model combining a hardware dongle (USB key) and a software license file.
Q: Can I copy the same license file to multiple servers?
No. Each license file is bound to a single server. Copying it will result in error -5 on the second server.
Q: Do I need a license file for each instrument PC?
Not if using floating network licenses. Only the license server needs the file; clients check out licenses remotely.
Q: What happens if the license server goes offline?
Clients with checked-out licenses retain them for a grace period (default 30-60 minutes, configurable). After that, they lose functionality.
Q: Can I merge multiple license files (e.g., expansion pack)?
Yes — concatenate the contents of both .lic files (with a line break) and restart the license daemon. Do not edit any other part.
Backup the Old License
Copy the New License
Restart Services
Verify Activation
Many IT teams move the Chromeleon\Data folder to a SAN drive. Do not move the license file.
To avoid downtime and compliance violations (USP <1058>, GLP, GMP), adopt these five best practices:
