Does ISE WebPACK require a FLEX license?
Yes, a license is required for ISE WebPACK. A WebPACK license does not require a host ID and, therefore, can work on any computer. To access a WebPACK license, run the Xilinx License Configuration Manager (XLCM). XLCM is automatically launched when the installation program exits. When XLCM starts, it prompts you to register, then automatically places the WebPACK license in the proper directory.