I have bound the form's Location property to a userSettings setting
"WindowLocation" using the configuration settings dialogs in vs2005. I
can't within a few minutes figure out how to write out the setting on
FormClosing event. I find the few docs on this totally obtuse. Can you

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For the benefit of future googlers.

In vs2005 define 2 user settings: WindowLocation and WindowSize.

Form OnLoad:

this.Location = Properties.Settings.Default.WindowLocation;
this.Size = Properties.Settings.Default.WindowSize;

Form OnClosing:

Properties.Settings.Default.WindowLocation = this.Location;
Properties.Settings.Default.WindowSize = this.Size;
Properties.Settings.Default.Save();

The file for persistence is "user.config" in the user's ..\Local
Settings\Application Data\CompanyName\ProgramNameHash folder.