You can use a portion of server memory called a protected address space to protect the server operating system from untried or troublesome applications. When applications are loaded into a protected address space, they can't corrupt the operating system or cause server abends.
Only applications and files stored in the traditional NetWare file system can be loaded into protected memory. The Novell Storage Services (NSS) file system does not use protected memory; it runs in the kernel address space.
All protected address spaces use virtual memory, so running modules in a protected address space also uses RAM more efficiently.
For general information about protected address spaces and the applications that can be loaded into them, see Protected Address Spaces. For general information about virtual memory, see Virtual Memory.