Yes and because the drive letter is assumed to match the drive letter of the workspace file, it is removed no matter what value is entered by the user.
I strongly urge you not to delete anything the user enters. Signal an error if it's invalid, but if it's valid leave it alone. When you change ...

Thanks for the explanation -- I now understand what you are trying to do.

However, what happens if the file being edited is D:\example\foo.html and the user enters D:\whatever\ as the LBD. The LBD has no common root to delete from the file's path, so I don't see how it can be interpreted. Moreover ...

Please follow my example closely.

Your left hand (Before) image does not have "D:\nars2000\trunk" in the Local Base Directory. Instead it has "\nars2000\trunk".

Please retry the example exactly as I described.

There's no need to post a picture of what I'm talking about as you have already done that! What you are seeing is exactly what I've been trying to describe!

In the Local Base Directory type (say) D: at the start so that it looks like D:\nars2000\trunk. Now click on Apply and see the D: disappear ...

I entered the details as you asked.

When I use a physical drive letter, the drive letter in the Local Base Directory still disappears. To be sure, the text in the GroupBox labeled "Example of the Local/Remote File mapping" below the GroupBox labeled "Base Directory Details" shows the correct drive ...

You didn't mention anything about the missing drive letter, perhaps because I forgot to mention that the drive letter I used (R:) is a SUBST drive. If you use a SUBST drive letter, does Zeus delete the drive letter in the Local Base Directory as it does on my system?

Using Zeus 3.96n, I have a workspace called "htdocs" with a project under it also called "htdocs" with three files in the project. Under workspace options, I have defined the options on the FTP tab of Server (ftp://ftp.nars2000.org) with UserID and Password.

BTW, the Local Base directory is ...

Using Zeus for Windows version 3.96m, given the following snippet in C (with line #s):

1. if (rank > 2)
2. {
3. ErrorReport ();
4. foo ();
5. }
6.
7. //Comment

With the cursor on line 7 (highlighted), when I fold the if statement, it shows

1. if (rank > 2)
2. { ... }
6.
7. // Comment

with line ...