On Mar 29, 2016 09:56am, Mike Luther wrote to Robert Wolfe:   
      
    ML> Well Maybe I can explain a bit but who knows?   
      
   Um, no, you didn't explain anything at all, unfortunately.  Really nothing to   
   do with my original question.   
      
    RW>> Well, it looks like I got OS/2 Warp 4 installed in a VM and the BBS   
    RW>> working with SIO 1.60d and VMODEM.  Unfortunately, whenever I go to   
    RW>> start the BBS, I am getting the popup saying that the virtual com port   
    RW>> is in use when it really isn't.  If I ignore through the error boxes,   
    RW>> the BBS starts up just find and runs normally.   
      
    RW>> Unfortunately, this popup is an annoyance when trying to run a front   
    RW>> end mailer (ViaMail in this case) and it goes to load the BBS and the   
    RW>> BBS exits back out to the mailer when a caller logs off.   
      
   ^^^^^  My original question/problem.   
      
    ML> I think few people have much knowledge of how OS/2 handles actual IRQ   
    ML> numbers and ring level work that are really needed for carrying OS/2   
    ML> back to way before even DOS operations for some things.  For example,   
    ML> 'normal' IRQ top level stuff only applies to IRQ 'numbers' up to what I   
    ML> think I recall are number 8.  That's not enough to work with some   
    ML> things that we need for IRQ level numbers which go up even way beyond   
    ML> number 8 especially when OS/2 is 'later' dealing with multiple CPU   
    ML> operations that, as I think I recall this, are up to as many as sixteen   
    ML> separate CPU's which then must be able to be coordinated with each   
    ML> other as to what each CPU is doing that must be absolutely understood   
    ML> by any action even down to COMM ports so that things don't violate the   
    ML> order of operation for multiple CPU stuff that grew up long after the   
    ML> original ring level and machine language code which I was originally   
    ML> working with LONG before there was OS/2 even there.   
      
   [...much deletia...]   
      
   Sorry, but all I got from your original post was a bunch of information that I   
   don't think related to my question so it was basically just information   
   overload for me.  Sorry.   
      
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