Actually you can get rid of this annoying message and I'm know 2 methods(require hex edit).
The first one is to instead of create window make it NULL:
Code:
Offset: 0x9FF55
Change: E8 D6 A2 03 00
To: B8 00 00 00 00
The second one is to get rid off event trigger that create this window(require more hex edits):
Code:
Offset: 0x261DC
Change: 6A 00 6a 00 6A 4D EB 26
To: 90 90 90 90 90 90 EB 2B
Offset: 0x27E52
Change: 6A 00 6A 01 6A 4D E8 F3 F5 16 00
To: 90 90 90 90 90 90 90 90 90 90 90