Currently im working on IE 8, I have moved to a new project where I have to acces QC, but when im trying to enter to QC I got a legend that I have to install "spider10.cab" but it get frezzed in that moment and I cant continue.
Agreed. Always follow this method myself. You never know whether there will be browser interaction issues (e.g. client-installed toolbars, etc.) that might interfere. By installing through the package, you eliminate conflicts at runtime.
1. Launch Internet Explorer
2. Under Tools / Internet Options / Advanced Tab scroll down to "security"
3. Clear the checkbox next to "Enable memory protection to help mitigate online attacks"
4. Close IE and restart IE.
5. If this does not completely resolve the issue, remove the QC Client and reinstall.