infoRouter needs to create temporary files during uploads, downloads and searching. Temporary drive check fails at application start up.
infoRouter uses two different temp folders.
On IIS 5 and IIS 5.1, the ASPNET account temp folder is profile based and is usually stored under "c:\documents and settings" folders.
On IIS 6 (Windows 2003) the Network Service account temporary folder is located under the WINDOWS\tmp folder. This temporary folder used for uploads.
Make sure the path specified in the error exists and the ASPNET or the NETWORK SERVICE account has Full Control permissions to this path.
On Windows 2003 make sure that the NETWORK SERVICE has Full Control to the C:\Windows\tmp directory.