If you have selected some option to Always use this app to open a file with, and you would like to undo this action, then this post shows how exactly to do this.

How to Open a File With Administrator Rights. Some files force programs to perform operations that require administrator rights. As an example, if you received a ZIP file containing several ...

The free, open-source TrueCrypt file encryption program allows you to create encrypted container files for protecting sensitive data. These container files appear just like any other file, which ...