Considerations when moving SAV CE v10 from UNC to HTTP updates
I didn’t see this documented anywhere, but you have to create the following MIME types on your web server when you move to HTTP updates as your transport.
IS Manager -> <your server> -> Default Web Site -> Your Directory -> properties.
Go to http header -> MIME Types. Add
.m25 application/binary (for v10)
.x86 application/binary (for v8 & v9)