Look into Visual Source Safe. It comes with VS Enterprise.

>
>I'm posting this, because I KNOW someone already is
>using what I need. I'm only trying to locate it, not
>invent it. :^) I need a file comparison utility with
>the following attributes:
>
>COMPARISON utility:
> 1- Compares program files
> a- Shows differences in existing code and older
> versions
> b- Indicates line numbers and modules
> c- Can optionally output the differences to a
> file or printer (or both)
> d- Can be auto-synched when new code has added
> lines, instead of showing differences from
> those new lines to the end
> e- Can be auto-synched when older code has lines
> which were removed from its new counterpart,
> instead of showing differences from those
> pre-existing lines to the end
>
> 2- Compares code contained in Classes and their
> sub-classes
> a- Shows differences between the original abstract
> class and its descendants
> b- Differences can include other objects ( in a container )
> as well as code differences
> c- Can optionally list the differences to a file or printer
>
> 3- Compares data files
> a- Especially for prepared testing data files,
> where different scenarios are examined for faults
> b- Shows differences between each data set in a DBF
> c- Shows differences in a raw ASCII-delimited file
> d- Shows differences in a raw SDF file
>
> 4- Compares Memo fields
> a- Not as critical, but nice to have.
>
>Whether you are using a commercial product, shareware or public
>domain, please let me know what it is and how to get it. If you
>have rolled your own utility, then let's talk. You already know
>how much time this saves.
>
>Thanks in advance,
>
>David Powell
>WagnerSys@aol.com