I get the error “Cannot use adobe reader to view pdf in your web browser. Reader will now exit. Please exit your browser and try again” in Windows 7 x32 and Windows 7 x64 with Acrobat pro 8.1.7. This happens when trying to open a PDF file in Internet explorer 8.0.760 or when I open a PDF in Quickbooks 2008. If I answer ok or cancel the file opens normally. If I open acrobat 8 first then the pdf files open as expected. I also tried a copy of Acrobat reader with no difference in the outcome. Since this happens on two different computers one fresh copy of windows 7 x64 the other an upgrade to windows 7 x32 and they used to work before the change to windows 7, I assume there is some kind of incompatibility with windows 7 and acrobat. Is this a known issue and will it be fixed in an update to acrobat in the near future?
