Install libstdc++.do.5 on SUSE 10 SP3 x64 without installation cd/dvd.
Normally, yast2 can be used to install the missing package
To install the missing package you need to have access to the SUSE repository.
then, download the package on your hard disk and install it.
you can either right click on it or use the following command as root:
rpm -ivh file.rpm
After that you should be all set.