You're looking for the GTK runtime environment version 2.4.14.
Glade/GTK+ 2.4.14 Release Candidate (Useful if the first link fails). 2. Installation Guide gtk runtime environment version 2.4.14 download
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Back in the mid-2000s, GTK 2.4 was a significant milestone. It introduced the GtkFileChooser , a standardized file dialog that was a massive improvement over previous versions. For developers on Windows, having a standalone runtime installer like this was convenient because it allowed GIMP (the image editor) and other open-source ports to run smoothly on Windows XP. You're looking for the GTK runtime environment version 2