Installer cannot not load NSISdl.dll

An installer I built for a Java program downloads and installs the JRE if the user doesn't have it already. I'm using NSISdl::download in my installer script. The part I believe is relevant is quoted here:

!define JRE_URL "http://javadl.sun.com/webapps/download/AutoDL?BundleId=52247"



StrCpy $0 "$TEMP\jre_installer.exe"

NSISdl::download /TIMEOUT=30000 ${JRE_URL} $0

Pop $R0 ; Get the return value

StrCmp $R0 "success" +3

MessageBox MB_OK "Java download failed: $R0"

Quit

When this code executes in our installer built with NSIS 2.46, I get this message in the MessageBox:

"Java download failed: /TIMEOUT=30000"

However, the message appears immediately, not after 30 seconds. If I remove the timeout argument $R0 in the message is the URL instead. It appears that the call to NSISdl::download is failing and its first argument ends up on the stack.

When this happens, the message above the progress bar is:

"Could not load: C:\DOCUME~1\Joel\LOCALS~1\Temp\nsv3.tmp\NSISdl.dll"

That DLL is not missing---it's in the indicated directory at the time when the install fails.

This worked with installers we've built with older versions of NSIS (I'm unsure what the last working version was, but I intend to find out later today). Does anyone know the cause of this problem? Is it an NSIS bug?

Have you tried inetc instead? It may be Antivirus software blocking the DLL as there has been malware with the same name.

Stu

I just now found the solution:

When I build the installer with a 2.46 that I built myself, it works. When I use the one provided by Fedora's mingw32-nsis package, I get the bug I described above. Ergo, I think Fedora's mingw32-nsis package is hosed.

I've reported the bug to them, so hopefully it will be fixed: