Hi vgta,
You can implement it by turning off "Enable Edit and Continue" and "Require source files to exactly match the original version" options in VS.NET 2005.
Tools/Options/Debugging/Edit and Continue: "Enable Edit and Continue"
Tools/Options/Debugging/General: "Require source files to exactly match the original version"
Sincerely,
Benson Yu
Microsoft Online Community Support
Please remember to click ?Mark as Answer? on the post that helps you, and to click ?Unmark as Answer? if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.