I need to upload a large pdf file (about 75 MB) to a SPS2003 doc
library, but it is rejected because it exceeded the maximum length
allowed.

Ok, I went to web.config file, that on the root of SPS server, at
C:\Inetpub\wwwroot and change the maxRequestLength="204800" from
maxRequestLength="51200", also I applied the same setting to
web.config on templates folders:

C:\Program Files\Common Files\Microsoft Shared\web server
extensions\60\TEMPLATE\LAYOUTS

C:\Program Files\Common Files\Microsoft Shared\web server
extensions\60\TEMPLATE\1033\SPS


But I still can't upload a file larger than 50 MB. I do iiseset too,
no help.

Anyone of you had this problem? what's the solution?