Hi David,
I haven't seen this error before (haivng installed VS2005 on 20 or 30 Vista
machines, so far). Obviously something is playing up on your system but it
seems like a pretty isolated case - there are a handful of references to the
error in Google, but nothing really conclusive.
But as with *any* problem installing Visual Studio, your best bet is to look
in teh lge file whch VS2005 setup creates - verbose logging is enabled, by
default. See this KB article for details:
http://support.microsoft.com/kb/904732
The other thing I would suggest is to tun off any anti-virus, database or
other extraneous services and applications, before you start. 0x80070020 is
the standard ERROR_SHARING_VIOLATION error - meaning that some other
process has a handle to the file, so it cannot be deleted or over-written.
Presumably, something else is already usng the Microsoft.VC80.ATL assembley,
when Visual Studio tries to instal it as part of setup.
Likewise, 1935 is a fairly common setup error; Aaron Stebner from Microsoft
has some good tips on troubleshootin 1935 errors in his blog:
http://blogs.msdn.com/astebner/archi...10/255346.aspx
Hoe this helps a bit,
Andrew
PS remember to apply VS2005 SP1 after you get Visual Studio installed; the
Service Pack includes important compatibility fixes for VS 2005 on Vista.