@fanbaby: I don't understand what you mean. I have worked almost three years on Unix Solaris 8 and 9 and I don't want to reinvent anything at all.
There is a fine line for what should be included with an OS and what shouldn't: I think that the basic fucntionnality of a virtual drive would be among the things that should/could. The only time I use ISO images is when installing software from a network share (fresh OS install or simply when installing a new software). If the client OS had the possibility to mount the ISO images without installing software, it would make my life simpler (and probably the one of many others). Yes, many linux distros do that already, yes, I think this would be a welcome addition to Windows, no, I am not migrating my office to Unix or Linux because of this.