Netdde on W2000

Hi all,

we use an application named InTouch 7.1.
It was written for NT, but we install it on W2000. It seems to work for the main features, but same secondary features based on NETDDE protocol doesn’t run. The SW support told us that it doesn’t work becasue w2000 doesn’t support NETDDE, and advise us to upgrade the release. It is true?
How can I enable the netdde protocol on w2000?

Thanks
Emanuele