I'm the network administrator of an organization using offline files and redirected folders in a Windows 2003 server environment. My personal machine is running Windows Vista SP1.
After upgrading my itunes to the latest version, my system hung, forcing me to force a restart. After restart, itunes wouldn't open, saying the library was in use or unavailable. I found that the solution there is to delete the library and recreate it. Only problem: I couldn't delete the library file.
I did some investigation and found that the library file, which is stored in my redirected "Documents" folder, was locked by mcshield.exe. I couldn't delete or rename the library file, even after terminating the mcshield process and all McAfee services. I made sure that I had the latest McAfee patches, etc., and still couldn't regain access to the library, neither from the server directly nor from my local machine. In an effort to gain access to the file I took ownership of the CSC folder, deleted the library file from the CSC, and then resynchronized the CSC. This succeeded in deleting the library file from the server. Next, I formatted the CSC cache using the FormatDatabase registry key, hoping that the process would restore the CSC to its default settings.
Though I was finally able to delete the itunes library file, now I'm experiencing an undesired behavior. Whenever I try to save a file to my Documents folder from an application like Excel or Word, it creates the file, but with a size of 0kb. Then, I get an error message. The message is different from application to application. The one in Word is, "There has been a network or file permission error. The network connection may have been lost. (U:\FILENAME.docx)" I am able to open files from my Documents folder, I just can't save them. I can copy, move, and rename files in the Documents folder. The problem only seems to surface when I'm performing a write procedure from an application.
The problem still apparently affects my original issue, my itunes library. Now, Itunes is creating a brand new library each time it's opened. Apparently, Itunes can't save its files properly, either.