KB2268081
VisualStudio 2010で「検索と置換」ダイアログを表示する度に、16[Pixel]ずつウィンドウ幅が大きくなっていたのかw
Patch Available for the Growing Find and Replace Dialog
http://blogs.msdn.com/b/visualstudio/archive/2010/08/12/patch-available-for-the-growing-find-and-replace-dialog.aspx
QFE: Find and Replace Dialog grows in width with each invocation
https://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=30518&wa=wsignin1.0