Right click on Mycomputer->Properties->Advanced System Settings
Environment variables
User variables for Windows 7
Variable Value
CDS_LIC_FILE C:\Cadence\LicenseManager\license.dat
LM_LICENSE_FILE 5280@sony-VAIO;C:\Cadence\LicenseManager\license.dat
System variables
CDS_LIC_FILE 5280@sony-VAIO;C:\Cadence\LicenseManager\license.dat
CDS_LIC_ONLY 1
LM_LICENSE_FILE 5280@sony-VAIO;C:\Cadence\LicenseManager\license.dat