nsisdl or URLdownload? which is better?

Hi all -

short version:

is the firewall handling of NSISdl as good as the firewall handling of a win32 fxn like URLDownload?


longer version:

i'm creating a system that will automatically update itself. I've decided on a simple implemntation -- b/c
my app isn't big -- it will check a version number & if the version number has expired -- it will load the "latest" installer from a fixed url /latest.exe

What i'm trying to decide now if i should use NSISdl to do the downloading -- its nice b/c its already written w/ nice progress bar, etc. however, i'll be calling the installer from a shell ActiveX control (req. for other functionality)

OR i could just write the download functionality into the activeX control -- use a win32 fxn like URLDownload to download -- displaying my own dialog & progress bar.


and the only reason i'd consider the second approach is if URLDownload does a better job at loading through proxies. Does anyone know?

I don't want to ship out my project & later discover that 5% of my users... even 1% of my users can't install my software b/c the proxy/firewall handling in NSISdl isn't as good as URLDownload's or some other win32 fxn.

Thanks -
Matt

NSISdl uses the Internet Explorer proxy setting. It supports everything except automatic proxy setting detection.

is automatic proxy setting detection something many people use?

is automatic proxy setting detection something that wininet handles transparently?

i wonder wonder wonder...

anyone know 4 sure?

thanks-
matt