As browsers have deprecated NPAPI support, the JAR is best launched through dedicated wrappers or Docker containers designed to host legacy Java environments. Distinguishing from IKVM.NET IPMI Viewer KVM Console Color issue - ServeTheHome Forums
The file is frequently distributed in a compressed format as iKVM__V1.69.21.0x0.jar.pack.gz . It must be unpacked using the unpack200 utility (often found in the IPMIView installation folder) before it can be executed manually. ikvm--v1.69.21.0x0.jar