ANU2507E Runtime API version is outdated

Hi All,
The following is the errors I have got from the tdp for Oracle v2.2.1.

07/27/2003:20:00:04 PID<396> ==> API Run Time Header Level = 4.1.3
07/27/2003:20:00:04 PID<396> ==> API Compile Time Header Level = 4.2.1
07/27/2003 20:00:04 ANU2507E Runtime API version is outdated
07/27/2003:20:00:04 TID<396>  ==>  ANU2507E Runtime API version is outdated
07/27/2003:20:00:04 TID<396>  ==>  ANU0003S An internal processing error has
occurred

If somebody have had the similar situation please let me know how did you
manage it.

The environment description:

Windows NT server, Oracle 8.1.7, TDP for Oracle v2.2.1

It worked before but stopped because the registry got corrupted. I
uninstalled tdp and tsm clients, reboot the computer, installed the tdp only
and got those messages.

All my previous experiments a day before with reinstalling both tdp and tsm,
installing them in different order first tdp then tsm and vise versa always
gave me the same results.

May be somebody more experienced knows what is "API Run Time Header Level"
and where the runtime API is installed and the main things how to reinstall
it.

Thank you in advance,
Yuriy.