Import all keys from signatures

[Dirk Zemisch]

Hi,

i'm just had some trouble with my keyrings and after all recovery etc. a
lot of keys I earlier received are gone.

But a lot of them are named in the sigs of my own key. Is there a
possibility to read out all key-IDs from the sigs and import the related
keys from a keyserver? Maybe someone here wrote a script or so?

I'm using WinXP and Ubuntu on the same keyring, so OS is not really
relevant.

Thanks in advance!
Dirk