Can someone explain why you need to make a new extension with every new runtime solution? I don't understand why this doesn't confuse the other applications. Isn't there a "standard" group of extensions to use instead of making them up? I need to make several runtime solutions of old filmaker archives, each needs to be a stand alone file.

Hi, Katie, and welcome to FM Forums!

Sometimes it does confuse other applications. See DysktrL's responses to this post.

usr is a pretty common extension to use, mostly because it's the default. I've noticed usr files being used by Corel for something called, if i remember right, PerfectExpert, but this is not a common application in my experience.

If you want to separate each of your solutions by extension, you might try usa, usb, usc (no wait-- NOT USB!!), usd, ...

Also, check out TechTarget for an extension reference that might help you.

HTH,

Jerry