pName (PSZ) - input

Address of the name of the file that contains the program to be executed.

When the environment is passed to the target program, this name is copied into "po" in the environment description shown above.

If the string appears to be a fully qualified file specification (that is, it contains a ":" or a "\" in the second position), then the file name must include the extension, and the program is loaded from the indicated drive:directory.

If the string is not a fully qualified path, the current directory is searched. If the file name is not found in the current directory, each drive:directory specification in the PATH defined in the current-process environment is searched for this file. Note that any extension (.XXX) is acceptable for the executable file being loaded.