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16 Nov 2009  

Windows 7 enterprise 64
The Windows Installer Service could not be accessed

Get "The Windows Installer Service could not be accessed" error message whenever run any msi file.

have tried running msiexec /regserver
also checcked service registry settings which appear to be ok (service is actually running)
other thing to note is that msi files don't appear with an icon, is this related?

Other posts about similar issues with xp talk about re-install of windows installer but as win 7 uses installer 5 i guess this is a none starter?!

it was working fine but i've done something to break it, not sure what!

any help appreciated... otherwise i'm going to have to re-install (after only 2 weeks!!!)
My System SpecsSystem Spec