ASP & COM

Hello All

I am new to COM so I need a little direction. I use ASP to upload a file to
the server. Once the file is loaded on the server, currently I am reading
the file and parsing it using the FileSystemObject and then creating an XML
string and uploading the data in to the database. Would this make more sense
if I uploaded the file and then used a VB6 COM program to validate the data
and write to the db if the validation is done else write an error message to
the screen.

Could any one direct me as to how to do this (Also how would I install it on
the server - would it need to be installed on the IIS server or the Database
Server).

Please advise ( some example code would help)

Thanks