1. I downloaded the scrrun.dll file and extracted it to windows/system
No, as David explained, you must go down one more level to the System32 folder and extract it there (or move it using Explorer)
2. I redid start/control/add/IE and OE tools/repair. But it still showed that the scrrun.dll file was missing.
Lets see what happens when the file is where it belongs. I believe that the file will need to be "registered" into windows which is a simple command operation. That is why the system does not recognize the file.
You now need to register scrrun.dll: Go to Start/Run...and in the command box, Type regsvr32 scrrun.dll and press enter. You should get a message that the registration was successful.
3. After emptying the cache I could reinstall IE6.
This is because the "new" installation did not have enough room to put the files into the temporary directory.
4. I had clicked the box beside Mail in Outlook Express/Maintenance but when I looked for Windows/Application Data/Microsoft/Outlook Express------There is still no Outlook Express
Do you mean no folder OE? or NO Outlook Express program?
We're making progress. Hopefully the solution is at hand.
Techie