Did you mean the "Hydrophobic Cluster Analysis"?
I got the following link from ExPASy's Tools page:
On Jun 18, 11:14 am, Heng Xiang <hxiang.... from gmail.com> wrote:
>> Would you mind telling me if there are HCA-Plot softwares runing under Win
> or Unix, and where I can download them. Thanks very much.
> Heng xiang
> Heng Xiang
>> The Key Sericultural Laboratory of Agricultural Ministry of China,
> Southwest University, Chongqing 400715, China.
> Tel: +86 23 68251088
> Fax: +86 23 68251128
> E-mail: hxiang.... from gmail.com