Source:  LOGIN.EXE

Explanation:  This error occurs when you try to map a search drive. LOGIN was unable to add the variable to the local path environment variable. LOGIN will try to update the master environment and, upon successful completion, will try to update its local environment. This error is usually an indication of having too little memory to allocate the new variables.

Action:  Increase the memory available to the workstation. See Resolving Workstation Memory Problems. (Adding more than 640 KB will not correct this error because 640 KB is the maximum that can be used.)

This is not a serious error; however, you will not be able to access those search drives as search drives until login has been completed. These drives will still be mapped as regular drives. Because they were successfully placed in the master environment, they can become search drives after login has been completed.