Replace 1 line with 4 lines of code

I'm using Visual Studio 6.0 Enterprise edition.

I'm working on a task to improve error handing, hence need to replace one line with 4 new lines of code. Doing manual is very boring. Possible to have 'Replace All' options.

Say, Replace

Code Line Old

BY

Code Line 1
Code Line 2

Any thoughts guys?

Regards,
Mark