hyperlinks to a special slide number in another slideshow

[Adrie Eeken]

For educational purposes I often use PowerPoint in an interactive way. For me the possibilities are restricted in working with more than one PowerPoint slideshow. I want to link to a special slide number in another PowerPoint file. Is that possible? Now I only can do that in the same file or linking to another file it starts from scratch. May be there is a kind of bookmarking or use of a special parameter when linking to a file.