Problem: Trying to create a directory or file leads to the OS/2 error message SYS0005. although there's no file or directory with this name and you have write access to the drive.
Hint: Maybe you're using the name of a device driver for the file or directory to create. Check the list of the installed device driver -- or use the code provided in Check if a name describes a device or a file to check if the name you're using is the name of an existing device. (see also Reserved directory & file names)