I facing a weird issue. I am able to upload a 32 mb file to a Document Library. But I am unable to attach same file to a task. Do I need to change settings other than Central Admin?
I have set limit to 50MB in Central Admin.
It's not weird, it's by design. Attachments limit size is (if I remember correctly) also limited by the
<httpRuntime maxRequestLength="size"/> element in web.config. Check that.
Just a side note.
<httpRuntime maxRequestLength="" /> does not work for IIS 7. It has a new setting under system.webServer. See this blog for a reference: http://weblogs.asp.net/jeffwids/archive/2009/09/24/from-iis6-maxrequestlength-to-iis7-maxallowedcontentlengthfile-specifying-maximum-file-upload-size.aspx
Also make sure that attachments are enabled on the Tasks list.