Convert C# to Class Library to read Office Doc Properties

Need to read the Office Document Properties from Word, Excel and Powerpoint. Can use the MS code from [login to view URL] which works fine as below (I modified it to use an existing doc rather than creating a new one). However, I'd like it to compile it into a DLL so it can be called by ASP.NET or WinForms in both C# and VB.NET (VS2010). So you need to implement this as a class library and sort out the interface references. I beleive this is possible but I don't have the experience or time to fiddle with that right now - I get the old "oDoc is a field but is used like a type" errors on an initial standalone class. You probably know better! Task: Convert it to a (still C#) Class Library so I can reference the compiled DLL in another project and query for the Author, Title and Manager of a standard office doc (provided as an input filepath string). Code to adjust: using [login to view URL]; using Word = [login to view URL]; using [login to view URL]; namespace FilePropertyChecker { public partial class FormMSApp : Form { public FormMSApp() { InitializeComponent(); } private void btnGo_Click(object sender, EventArgs e) { [login to view URL] oApp; Word._Document oDoc; //object oMissing = [login to view URL]; object oDocBuiltInProps; //object oDocCustomProps; //OPEN EXISTING DOC... oApp = new [login to view URL](); oDoc = [login to view URL](@"C:\Docs\[login to view URL]", ReadOnly: false, Visible: false); //[login to view URL](); ////Create an instance of Microsoft Word and make it visible. //oWord = new [login to view URL](); //[login to view URL] = true; ////Create a new Document and get the BuiltInDocumentProperties collection. //oDoc = [login to view URL](ref oMissing, ref oMissing, ref oMissing, // ref oMissing); oDocBuiltInProps = [login to view URL]; Type typeDocBuiltInProps = [login to view URL](); //Get the Author property and display it. string strIndex = "Author"; string strValue; object oDocAuthorProp = [login to view URL]("Item", [login to view URL] | [login to view URL], null, oDocBuiltInProps, new object[] { strIndex }); Type typeDocAuthorProp = [login to view URL](); strValue = [login to view URL]("Value", [login to view URL] | [login to view URL], null, oDocAuthorProp, new object[] { }).ToString(); [login to view URL]("The Author is: " + strValue, "Author"); //close objects... [login to view URL](); } } } Let me know if it's possible, should only take an hour or two if so - will include this code working in WinForms proj attached to help, see what you think. Thanks, Phil