DOS Based Applications in 2006

I didn’t think I’d have to still mess with these but I have a client with three company-wide DOS based applications that are mission critical shared amongst 30+ users. DOS – in 2006, what the heck? Haven’t any of these products moved to new technologies? The applications I’m stuck with are AMSI for DOS from Geac, HUD2000, and Dash-29. One of them actually dials up a modem number and then transmitting SMTP traffic to a government agency.

The hardest part was dredging out the tricks for managing these beasts. I started out with DOS but that was in stand alone systems. I didn’t get into serious networking and tech support until the Windows 95 era so I’m a bit rusty. Network printing from DOS apps got me all twisted around until I dug through all of the existing logon scripts. I never did find a decent DOS reference site – just had to Google my way through it. Any suggestions - feel free to post a couple?