How do you pass wildcards to a command? I tried passing a "*" or a variable containing an * but it still doesn't work. Is there some special notation I have to use if I want to pass a wildcard to my command?

Also I have this problem where whenever I use a common dialog box for openig or saving files, It screws with the directory where my database connection searches for my database. So let's say I specify in the properties of the connection the database name, I run the program and everything is fine, but when I save or open a file,The connection searches for database in the last accessed directory whenever I used a common dialog box. How can I make sure that the connection always searches in the application's path?