Hello Richard,

First, check to see if the file exists in the folder, and if it does, see
if you can register it with regsvr32.exe.  (regsvr32 "C:\Program
Files\Microsoft Visual Studio\Common\Tools\VSInst\Vsieng.dll"), and see if
it registers.

If not, download regmon from http://www.sysinternals.com and run it while
executing the above step.  It will tell you where the registration is
failing.  You should then be able to provide the correct permissions for
this user and then execute the install with success.

Cheers,
Tim Macaulay, MCSD, MCP.Net
Microsoft Product Support