makecert.exe failure with default security container

[Klaus Johannes Rusch]

makecert.exe fails on one machine with default security container but
works when specifying another security container using the -sk option:

makecert -ss my -n "CN=DO_NOT_TRUST_FiddlerRoot,
O=DO_NOT_TRUST,OU=Created by fiddler" -eku 1.3.6.1.5.5.7.3.1 -r
Error: Can't create the key of the subject ('JoeSoft')
Failed

makecert -pe -ss my -n "CN=hostname.example.com,
O=DO_NOT_TRUST,OU=Created by fiddler" -sky exchange -in
DO_NOT_TRUST_FiddlerRoot -is my -eku 1.3.6.1.5.5.7.3.1
Error: There is no matching certificate in the issuer's my cert store
Failed

Any suggestions how to fix this problem, or hints where these security
containers are stored?

Thanks

--
Klaus Johannes Rusch
Klaus...@atmedia.net
http://www.atmedia.net/KlausRusch/

[Livrish]

I have tracked this down to a access denied when trying to access the key in
"C:\Documents and Settings\All Users\Application
Data\Microsoft\Crypto\RSA\MachineKeys"

If I use currentuser I do not have this problem

I would really like to know what I need to configure in order to use
localmachine

thanks