Although Windows buttons, scrollbars, and other widgets are not, in general, available for Unix desktops, there are times when it's desirable to give Unix GUIs a bit more of a Windows appearance. Among the cheap option database tweaks that can help cosmetically are
option add *borderWidth 1
option add *Text.background whiteRichard Suchenwirth has mentioned that, "I also like
option add *font {Helvetica 9}because on Solaris, the default bold Helvetica isn't that beautiful."
A good location for related information is "Microsoft Windows and Tk".
Readers should take the above with a grain of salt. The Windows port of Tk makes use of Windows native widgets in several places. To make the native X widgets act just like Windows is beyond simple option settings. Instead, the above adjusts some of the decorations and fonts used. They do not modify behaviors, add functions like native print support, etc.