Description  cannot open SELECTserver (SS) Admin Site when logged as the user different from the one that installed SELECTServer (SS) application.

SS 09.00.00.99 (also true for previous versions of SelectServer)

If you log in to SelectServer machine as a user different from the one that installed SS (no matter admin or regular user) and try starting SS Admin Site by using the start menu link
(Start->Programs->Bentley->SelectServer->SelectServer Administration Site)
The SelectServer installation will begin which will fail with "Failed while processing WebVirtualDirs. (-2147024894)", when OK is pressed "Fatal error during installation" is displayed.

Workaround 

Open the SS Admin Site using the http://localhost/bss/admin/default.aspx  
URL directly entered in the browser. 

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