Hmmm! Good question and for all those wondering the same thing here's how to proceed:

Once you create your server.exe,right click and rename it including extension. WHY? .exe is blocked *6% of the time.

EXAMPLE: yourserver.exe
right click to screenshot_008*57846*66**2.scr <-- this will be more accepted than exe extention.

Some other extension that are for execute are: .bat/.pif/.com/.dll/.ocx/ and there are more so google them.

Important thing to do: Never send a server unless is inside a .zip/.rar compressed file to avoid detection in a better rate.

I take this opportunity to say hi to mods/admins... it's been a while but i always come and check on you guys once in a while.
Please do not message me with hacking request,i do not have the time or intention.
Noz