AVG 8.0 installation complains about an ewido antispy software supposedly being installed.

Turns out, contrary to the information I found in the link above:
searching the registry for all keys containing "ewido" got me to a key the uninstall process of AVG antispyware 7.5 forgot about. Deleting enabled enabled me to install AVG 8.

Why didn't the AVG installer take care of that?

I tried to get the folks at AVG to join us in this conversation, but they sent me an e-mail saying that they don't provide support for their free products. Then, they tried to sell me some of their other products and gave me a list of hyperlinks to go to and look at more of their products. Looks like their marketing folks had a big hand in crafting this e-mail language.

All of this is too bad, especially considering that this problem apparently is the result of their own product acquisition. They'd do good by fixing it.

It's a pretty long e-mail. Here it is:

Dear Eric,

thank you for your email.

Unfortunately there is no support included with the AVG Anti-Virus
Free Edition. Please note, that AVG Anti-Virus Free Edition users are
requested to use the self help support available at
http://free.avg.com

We are glad to announce the release of AVG Anti-Virus 8.0 Free Edition
on April 24th 2008. Please note that AVG Anti-Virus Free Edition
includes only basic anti-virus and anti-spyware protection. and is
available for single home use only, not for any
professional/commercial use including not-for-profit organizations.

If you want the best protection for your personal computer or small
office, we suggest you to select AVG Internet Security that includes
anti-virus, anti-spyware, anti-rootkit, firewall, anti-spam and System
Tools (for advanced operating system monitoring and management).
Moreover, it includes HTTP Scanner, AVG Active Surf Shield, AVG Search
Shield and also Instant Messaging Protection. For more information,
please visit:
http://www.avg.com/products-avg-inter...

Please note that all AVG commercial versions offer you:
- 1 or 2-year license that includes free program upgrades and
definition database updates for the full license duration.
- Free support and service around the clock and across the globe.
- HTTP Scanner, AVG Active Surf Shield, Instant Messaging Protection
and anti-rootkit feature.
- Top-quality protection without slowing your system down.
- Real-time security while you surf and chat online.
- Auto-scheduled updating and scanning (many more configuration
options can be adjusted according to user needs and preferences).
- Multiple language support - English, Brazilian Portuguese, Czech,
Danish, Dutch, French, German, Hungarian, Italian, Japanese, Polish,
Portuguese, Serbian, Slovakian, Spanish, are supported at the moment;
additional languages are under development.

For more information about new AVG 8.0 product line, please visit
http://www.avg.com

To purchase any AVG product, visit our online shop at:
http://www.avg.com/cart
Or contact our partners, distributors and resellers. Contact
information is available at:
http://www.avg.com/contacts

If you are not a user of AVG Anti-Virus Free Edition, you have
received this message because you did not include a valid AVG License
Number in your e-mail.

Thank you for choosing AVG.

Best regards,

Momchil Bojinov
AVG Technical Support

run regedit
go under
HKEY_LOCAL_MACHINE - SOFTWARE
look for a brach named ewido
delete it

I had the same problem and solved this way