Orcad 10.5 License File May 2026
FEATURE OrCAD_Signal_Explorer cdslmd 10.5 15-dec-2025 1 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=9876543210FE
FEATURE OrCAD_Capture cdslmd 10.5 15-dec-2025 2 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" ISSUED=1-dec-2024 SIGN=1234567890AB Orcad 10.5 License File
| Type | File Name Example | Purpose | |------|------------------|---------| | | license.dat | Fixed to one computer’s hostname/MAC address | | Floating (network) | license.dat | Served by a license server to many clients | | Evaluation | license_eval.dat | Time-limited, often feature-limited | FEATURE OrCAD_Signal_Explorer cdslmd 10
FEATURE OrCAD_PCB_Designer cdslmd 10.5 31-dec-2025 5 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=78EF56AB34CD12 vendor daemon configuration
FEATURE OrCAD_PSpice_A/D cdslmd 10.5 31-dec-2025 10 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=CDEF12345678AB The OrCAD 10.5 license file is a classic FLEXlm license.dat — a structured text file combining server binding, vendor daemon configuration, and cryptographically signed feature lines. It reflects a transitional period in EDA licensing, moving from dongles toward network-managed floating licenses. While obsolete today, understanding its anatomy is essential for anyone maintaining legacy design environments or recovering old PCB projects.
LM_LICENSE_FILE = 5280@myserver CDS_LIC_FILE = 5280@myserver
LM_LICENSE_FILE = C:\OrCAD\license.dat CDS_LIC_FILE = C:\OrCAD\license.dat CDS_LIC_FILE was Cadence’s override variable. Many admins set both for safety. The license file would contain one or more of these features (product names):
