Getting the fonts folder
Here's how to get the fonts folder on a windows system incorrectly:
string fontPath = Environment.GetFolderPath(Environment.SpecialFolder.System) + "\Fonts";
It looks so terse and tempting - the SpecialFolder enum takes you all the way there except for "\Fonts", so you just tack that on.
OK - first off, you shouldn't concat path element strings - that's what Path.Combine is for. Secondly, just don't do this. Is the Fonts folder named "Fonts" on a system in France? Turkey? Cambodia? Yeah, didn't think so.
Since SpecialFolder is missing the specifier, you have you implement it yourself:
private static extern int SHGetFolderPath(IntPtr hwndOwner, int nFolder, IntPtr hToken,
uint dwFlags, [Out] StringBuilder pszPath);
public static string GetFontFolderPath()
StringBuilder sb = new StringBuilder();
SHGetFolderPath(IntPtr.Zero, 0x0014, IntPtr.Zero, 0x0000, sb);
0x0014 is a constant that tell SHGetFolderPath to look in the right place. If you're running on Vista, you should use SHGetKnownFolderPath instead.