ECC 5.0 installation Error

Hi,

I am trying to install IDES ECC 5.0 on my system. I am getting one problem like...

while installing the Central Instance it asked for a path "IGS folder IGS_SOFT" for the installation of IGS.

Thing is no path from the DVD ie from the source is taking.

What should i do for this IGS_SOFT path. Please give me a solution ASAP and let me know what is IGS.

Thanks in advance.

Shashi,Samal