Have I missed anything?

(For WinXP, Dev channel Chrome 3.0.183.1)

Install extensions to the following;

C:\Documents and Settings\<username>\Local Settings\Application Data\Google\Chrome\User Data\Default\Extensions

add the following to the shortcut on the Desktop
--enable-extensions

"C:\Documents and Settings\<username>\Local Settings\Application Data\Google\Chrome\Application\chrome.exe" --enable-extensions

When I enter chrome://extensions/ to Chrome,
I get
Installed Extensions
No Extensions Installed

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realized that I got to install AdSweep.crx after adding it to the extension folder and all is well

extensions also working in Chromium 3.0.184.0 (17683)

To install, all you need to do is double click the .crx
To uninstall, chrome://extensions/

thanks

and I am going to look for more extensions