Error with Sharepoint 2010 Foundation

We have a client that we recently upgraded to SharePoint Foundation and Search 2010. We tested the up gradation with Foxit PDF IFilter 2.0 since we know that it commonly runs faster and can index various PDF files. The installation for Foxit went well but we got errors in Crawl log with each PDFs. The error is stating:
Crawled (The filtering process could not load the item. This is possibly caused by an unrecognized item format or item corruption. 0x40d30)
When going back to Adobe IFilter, it works fine with manual installation and some registry modification. Does anyone know a solution for this?
