You can set a level for minimum free hard disk space  
 which must be available when XP starts (what          
 happens cannot be controlled). If the space available 
 is less than the limit, a warning is given.           
                                                       
 The minimum is 1MB. You should set here at least      
 3 times the size of the largest Netcall data quantity 
 you expect to receive, but better set a much higher   
 value and make space available, at least until you    
 know what you are doing.                              
                                                       
 Problems through the hard disk suddenly being full    
 in the middle of data handling always lead to         
 unrecoverable loss of data.