/Diff
Compares two files. The differences are displayed in a special Visual Studio window.
devenv /Diff SourceFile, TargetFile, [SourceDisplayName],
[TargetDisplayName]
Arguments
SourceFile
Required. The full path and name of the first file to be compared.TargetFile
Required. The full path and name of the second file to be comparedSourceDisplayName
Optional. The display name of the first file.TargetDisplayName
Optional. The display name of the second file.