[Windows 7 Application Compatibility episode 2]
I met customers saying that their pop up window got wider and taller after installing IE7 or IE8.
Yes, as for getting taller (larger in height), IE7's window height accounts for the content area only, not including the frame.
This can cause the window size changes.
And IE7 also introduced minimum window sizes contraints.
If you encounter these kinds of problems, please check if these documents are helpful.
dialogHeight Property
http://msdn.microsoft.com/en-us/library/ms533724(VS.85).aspx
In Windows Internet Explorer 7, the dialogHeight property returns the height of the content area and no longer includes the height of the frame.
dialogWidth Property
http://msdn.microsoft.com/en-us/library/ms533727(VS.85).aspx
In Windows Internet Explorer 7, the dialogWidth property returns the width of the content area and no longer includes the width of the frame.
open Method
http://msdn.microsoft.com/en-us/library/ms536651(VS.85).aspx
height = number
Internet Explorer 7. Sets the height of the window in pixels. The minimum value is 150, and specifies the minimum height of the browser content area.
150
Prior to Internet Explorer 7 the minimum height value is 100.
100
width = number
Internet Explorer 7. Sets the width of the window in pixels. The minimum value is 250, and specifies the minimum width of the browsers content area.
250