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Projects with minimum and maximum time lags between the start of different activities (i.e. there are schedule-dependent time windows) play an important role in practice. Unfortunately, maximum time lags have been discussed in literature very rarely and only recently. However, maximum time lags (in addition to minimum ones) are needed to model a variety of practical requirements such as deadlines for subprojects or individual activities, simultaneous or non-delay execution of several activities, time-varying resource requirements, time windows for resources, scheduling of make-to-order production, and resource allocation in process-determined industry (cf. Neumann and Schwindt 1995, 1997).