4148

Summary:	File sharing violation
Cause:	Violation of file sharing rules. Attempt to access a file that is in use and cannot be shared. Most likely one of the following occurred: Some other computer has the file open without sharing it. You need non-shared access to a file and another computer has it opened. The operating system (or another program) has locked the file.
Remedy:	Check to see that the correct Shr parameters were specified in the Open statement. If so, change the program so that it does not violate the file-sharing rules or wait for release of the file in use. Use Status Locks to determine which workstation has the file locked. Possibly an anti-virus program, or any number of other programs. Microsoft - Help and Support - Configuring opportunistic locking in Windows