is Windchill Windows based or Unix based

A number of software accomodations for *NIX will be in Creo Parametric for a while. It no longer depends on it, but the marks are still there.

The *NIX OSs never developed a unified user interface so developers had to create their own requesters and menuing systems to avoid customizing for each *NIX version. When Microsoft developed a new windowing OS PTC did not develop an entirely separate version of its interface just for that.

The good thing is this means that the interface doesn't work exactly the same as Windows (though it may act very much the same) and that's also the bad news. Typically, in Windows programs, using the File/Open requester means not being able to select any other menus until that requester is closed. PTC's version doesn't block the user, which is good if there's a mis-click. And it lets PTC build in other features, like it;s own Favorites. The bad news is that external programs can't see or use the requesters, so harder to use AutoIt and it's like. This would make a great Ask the Developer topic.

The other thing that hangs around is that *NIX uses file header information to determine file type, while Windows uses the suffix. Developed for *NIX, it didn't seem that bad an idea to suffix files with a version number, while in Windows this just makes it all a painful experience. Ever double-clicked on an information file that Pro/E made and have Windows start loading Pro/E? For a text file the Pro/E can't hope to open anyway? Check the Registry - .1 to .999 are all registered suffixes to open Pro/E with.