First, you need to specify a little more. First, if this is all hapening on Windows, you can look at Win32::OLE

However, if these forms you are talking about are web forms running on say UNIX, there is no way (as far as I know) to create a .doc using perl. Open Office may work but I don't know if you can automate it in perl or not.

Perhaps you may want to look at using something like an .rtf file instead of a word file so you could use something like RTF::Document and your client can still open it in word and have formatting.