Removing carriage return/line feed using sed

I have a need to turn this input file: This is line 1 ; This is line 2 ; This is line 3 ; into this: This is line 1; This is line 2; This is line 3; and have been unsuccessful using GnuWin32 SED or AWK. I need the ability to join these lines so that they are all one line with no Carriage Returns/Line Feeds. If there is SED or AWK script to do this or some other approach, I would appreciate hearing of it. Thanks.

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