I'm stuck.

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I'm needing to write an application to simplify a process.
Currently the user needs to:

• Login to a website
• Download a zipped file containing a single text file
• Extract the text file
• Rename the text file
• Run a third party process against the renamed file
• Upload the processed file

I'm thinking of using a Web Browser control to let the user login to the site and initiate the download.  I'd do the rest of the process programmatically and then let the user perform the upload.  I have two problem points.  1) On download a 'save as' dialog comes up.  How could I capture or contol this so that I can manage the saved filename and download destination?  2) On upload the site has an edit control to specify the source and I'd like to fill that in programmatically as well.

Any help/suggestions?
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