I have a fix if you are getting the error:

Microsoft VBScript runtime error '800a000d'
Type mismatch: 'URLEncode'

I recently went from Windows Server 2000 to Windows Server 2003 and got
this error.  After searching the Internet for more than 4 hours and
finding nothing I decided to post what I found fixes the problem.

I assume that you created the catalog and it's referenced correctly in
your code.  The fix is so easy.  Just go to the Indexing Services
console (Control Panel > Administrative Tools > Computer Management >
Services and Applications > Indexing Service) and do the following:

1. Right-click the catalog you are trying to get to work and go to
properties.

2. Click on the Tracking Tab.

3. Select the WWW Server that is suppose to be using the catalog.  It
was probably set to (None), hence the type mismatch error pertaining to
the vpath.

4. Click Apply and then OK.

5. Stop and start Indexing Services to make the change go into effect.

Hope this helps. Post here if it works for you so that others know.

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