MFS_OPEN - Open a file

Purpose   

Open the specified file. 

Calling Sequence   

int far pascal MFS_OPEN(pszName, pulSize)

char far * pszName;
unsigned long far * pulSize;

Where   

pszName is a pointer to the ASCIIZ name of the file to be opened. It may 
include a path but will not include a drive. 

pulSize is a pointer to a double word which is filled in by the mini-FSD 
with the size of the file in bytes. 
  

Returns   

If no error is detected, a zero error code is returned. If an error is 
detected, a non-zero error code is returned. 

Remarks   

Only one file at a time will be opened by this call. The drive will always 
be the boot drive. 

The current file position is set to the beginning of the file.