Error Creating Package - Failed To Save Package File ... Emp EmpD4B.tmp With Error 0x80040154 Class Not Registered

I had just installed SQL 2005 dev on my laptop and got an error message when I tried to create a package using the BI IDE. I received the same error using VS2005 IDE. But the project was created regardless without any packages. When I tried to create a new package in the project, I received the same error again, but with an option to view the error details.

Following is the text of the error details:

TITLE: Microsoft Visual Studio
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Error creating package

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ADDITIONAL INFORMATION:

Failed to save package file "C:Documents and SettingsmyoungbloodLocal SettingsTemp mpD4B.tmp" with error 0x80040154 "Class not registered".


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Failed to save package file "C:Documents and SettingsmyoungbloodLocal SettingsTemp mpD4B.tmp" with error 0x80040154 "Class not registered".


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BUTTONS:

OK
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I found a similar post that suggested that they try the following:


regsvr32 msxml3.dll
regsvr32 msxml4.dll
regsvr32 msxml6.dll

But msxml6.dll could not be found.

I did get a copy of this file from a coworker, and after copying it and registering it, I was able to add a package to the project.

My concern now is what is the likelyhood of this being the only file missing from the installation.

I'm wondering if I should reinstall, or (if it exists) do a repair on the installation.

Thanks.

Marshall