Abstract: A file protection method. At least one file attached to an e-mail is retrieved. An executable file including the attached file is automatically generated. The file attached to the e-mail is automatically replaced by the executable file. The e-mail is transmitted to a destination terminal. When executed, the executable file determines whether to display the attached file based on transmission of the destination terminal identification to a predetermined server.

Abstract: System and method for controlling the use of control wafers in a semiconductor fabrication line with load balancing and resource minimization. A preferred embodiment comprises a control wafer manager (for example, control wafer manager 605) and an inventory manager (for example, inventory manager 630). The control wafer manager uses a fabrication process dependency graph (for example, fabrication process dependency graph 407) to help determine where a control wafer may be able to go after it has completed its current process step. The inventory manager uses available inventory at each process step to assist in the decision process. Finally, a check-in process is used to ensure accurate inventory control.