Open the Control Panel, choose Add/Remove Programs and then select "Software Artisans SA-FileUp". The automated uninstallation will remove SA-FileUp completely from your system.
With IIS4, it may be necessary to manually delete the "SAFileUpDocs" and "SAFileUpSamples" virtual roots using the Microsoft Management Console/Internet Server Manager.
Remove SA-FileUp from the Registry:
C:\> REGSVR32 /U C:\WINNT\SYSTEM32\INETSRV\ASP\CMPNTS\SAFILEUP.DLL
And then delete all copies of SAFILEUP.DLL.
Certain betas of Version 2 contained an additional file called ATL.DLL that was installed in the C:\WINNT\SYSTEM32 directory. This file is supplied by Microsoft as part of the Active Template Library. It may be safely left on your server. If you elect to remove ATL.DLL, you must unregister it first.
C:\> REGSVR32 /U C:\WINNT\SYSTEM32\ATL.DLL
and then delete ATL.DLL