Comments by StephenGehlert (Top 2 by date)

I presume you mean .doc and .docx (instead of .docs). I must say I wouldn't advice running the MS Word application like it is suggested in "Solution 1".
It is highly unrecommended to use a word automation in .NET on server side.
Instead you can check out this article that demonstrates how you can load (a.k.a. open and read) both .doc and .docx in C# with the same approach.
Also here is how you can convert those Word documents into a HTML with C#. Note that both articles use this Word library for C#.