Sending E-Mail to Software Developer, had to attach a number of documents, so i think, best i put them into an archive, lets just use 7Zip cause its two clicks for me.

Instant E-Mail back:
Thanks for your E-Mail, unfortunatly we cannot accept the .7z file. Please speak with out IT guy about the issue.

REALLY!? YOU GUYS SELL SOFTWARE AND YOU DONT KNOW WHAT 7Z IS ?!?!

I send a zip file in return without speaking to anyone.