I use Visual Studio 2005 with Visual Studio Team Foundation Server set
up as my current source control plug-in. when I compare the
differences between historical versions of a source controlled file
(using File | Source Control | Compare... or any other method) the
Differences window always opens centered on my primary display in a
restored state and is about 75% the width of the display and 75% the
height of the display.  Ideally I would like to be able to have the
position of the window remembered, meaning that if I move it or if I
maximize it and close it, the next time I see that window it will be
in the same location.  I would also be satisfied if I can make a
change somewhere (for example to a file or a registry entry) that will
always make the window open in a particular location (I want to be
able to have the window split across two side-by-side displays and
take up 100% of the width and the top 80% of the height of the
combined displays.)


Help about the differences window can be found at this location:
http://msdn2.microsoft.com/en-us/library/c0ds9z1f.aspx


I use Visual Studio 2005 with the following installed features and
products from the Help | About dialog (product keys have been removed)

Microsoft Visual Studio 2005 Version 8.0.50727.42  (RTM.050727-4200)
Installed Edition: Enterprise
* Microsoft Visual Basic 2005
* Microsoft Visual C# 2005
* Microsoft Visual C++ 2005
* Microsoft Visual Studio Tools for the Microsoft Office System
* Microsoft Visual Studio 2005 Team Edition for Software Developers
* Microsoft Visual Studio 2005 Team Explorer Version 8.0.50727.147
* Microsoft SQL Server Analysis Services Version 9.00.2047.00
* Microsoft SQL Server Integration Services Designer Version 9.00.1399.00
* Microsoft SQL Server Reporting Services Designers Version 9.00.1399.00
* Team Foundation PowerToys   1.0