>>81-84 C:\Program Files\Adobe\PDF IFilter 5.0\readme.htm
Use the Index Server snap-in to the Microsoft Management Console (MMC).
In order to index PDF files in all catalogs, right click on “Indexing Service” or right click in a specific catalog.
Select “properties” from popup menu. Open the “Generation” tab. Check the option for “Index files with unknown extensions.”
カタログのプロパティで生成タブにある"未登録の拡張子のファイルにインデックスを付ける"をチェックしても駄目か?
あとはこの方法とか
1. Change the registry value
HKEY_CLASSES_ROOT\CLSID\{4C904448-74A9-11d0-AF6E-00C04FD8DC02}\InprocServer32\ThreadingModel
from Apartment to Both
2. Double click the registry value HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\DLLsToRegister value, and then click Modify.
3. Remove the entry corresponding to pdffilt.dll from the list.
4. Using the Services Control Panel, restart Indexing Service,
5. Perform a rescan (as described above)
http://www.4-share.com/content/ZFilterFAQs.htm#Q20