Thanks for all your help!!
Here is the real problem:
There is an Application (written in FPW 2.6) that for some reason uses the comm port to download data from a hand held barcoding device (capture the data on the floor plant and the donwload the data to the Application PC.) but that application doesn't work with Win NT because uses an old DOS based program to reach the comm port what could be the best approach to solve this problem?
An Intelligent fool can make things bigger and more complex... It takes a touch of a genius -and a lot of courage- to move in the opposite direction".
-Albert Einstein