I recently downloaded the latest AutoIT 3.3.10 and recompiled my version of ChunkVNC... all was well until today when AVG and others flagged it as malware (after no issues for a week or so). This may be a temporary issue until the various anti-virus products update the databases. However, I've retreated to a previous version of AutoIT and the problems vanished.
I also noticed a significant increase in size using 3.3.10
JonD