These programs are written in Turbo Pascal 7.0. Con_filt.exe is a utility for TstHost 1.41 and higher. For further information see the doc files from Tsthost. Tsthost is a program from IK1GKJ. This program accesses TstHost for information about the status of the program and the tasks. Extended data request will be done trough the internally IQR service vector, normally 101, 65Hex. This vector may be redefined with the command TstHost /V, that accept in input a DECIMAL value. This program is tested with TstHost 1.43a.