Obviously google is the simplest answer ... prohibiting this ... I don’t think there is any particular alternative to /? which will give you additional features. You can try running “lines” in relation to the executable in question. This may throw out some hidden options. "strings" comes with most (all?) unix distributions, for windows: http://technet.microsoft.com/en-us/sysinternals/bb897439
If you are not familiar with the lines ... it just spits out every line that it can find inside the executable ... this is often useful for finding hidden things.