Internet Explorer is working fine.
I tried some sugestions from this forum but this did not help me.
But some remark.
When I tried to put address to Offline Explorer to view, it worked.
Where is a problem ?
Internal browser in Offline Explorer Pro works well because it is just MS Internet Explorer window embedded in the program.
Do not working it, but page is loading in browser !!!
Problem is in settings on ISA server ?
Tried WebCopier, it uses Internet Explorer setting and can download without the gateway error!
Please do something about this.