I assume it was a typin mistake when you said "I noticed that the 7.0.1 version of abtntsrv.exe is an exact copy of the abtntsir.exe of 6.0.2. (except for the timestamp at offset 80hex)". Please confirm this.
No, it was not a typing mistake. The file sizes are as follows.
abtntsir.exe - Size 45056 Bytes
abtntsrv.exe - Size 57344 Bytes
abtntsir.exe - Size 57344 Bytes
abtntsrv.exe - Size 73728 Bytes
If I do a byte-wise compare of the abtntsrv.exe of 7.0.1 and abtntsir.exe of 6.0.3, only 8 bytes at offset 80h are different. It appears to be some kind of timestamp.
I'll try and create the log. I will post it later