Mach 2 to Mach 3 upgrade problem

I have a problem upgrading Mach 2 to Mach 3 and I would appreciate the help of anyone cleverer than I am that knows the answer to my problem.

I have two computers, one being the house computer attached to the internet and the other being my workshop computer attached to a CNC router and has no internet connection.

The workshop machine was running mach 2 OK but then I downloaded Mach 3 Version 3.042.020 to my house computer desktop and transferred the file to a pen drive and then transferred it to the C: drive of my workshop computer. Fine I thought, I am now ready for the upgrade. Silly me!!!
As usual, if it was not for bad luck I would have no luck at all.

What I got was what I think was a DOS Screen flash up very quickly and just as fast it disappeared but these old eyes of mine were unable to capture what the message said. I ran the program several times but missed the message every time. Right I said to my self, (I tend to do that at my age), maybe there is not enough disk space for it so I removed most of the programs from the hard disk. The drive is a 150 Gig drive and now has 125Gig free.

I tried again but got the same result.

In case anyone needs the spec. of my workshop machine, it is:-

CPU AMD 1.1 GHz
Memory 256 Mb
HDD 150 Gb with 125 Gb free
Running Windows XP Pro SP2

Any help would be much appreciated.

Regards,

Mike.