software - Adobe Acrobat 6.0.6 with japanese language pack installed.
OS - Windows XP Professional SP2 with multilingual pack installed.
Office 2003 SP2 with multilingual pack installed.
Okay, now that the basics are out of the way, here is the problem:
Any PDF file that has a japanese character in the filename will not open. In some cases, the PDF is sent in a japanese language email and all of the characters show fine. If I click on the PDF to open it however, I get:
"There was an error opening this document. The filename, directory name, or volume label syntax is incorrect."
If I rename the file to English characters, the file opens fine, showing all the original content in the file, including the japanese characters. Japanese characters show fine in all Office applications. All updates and service packs are installed.