Hello Martin and oiaohm, Following your informations, here is as I understand my problem, in fact splitted in 3 points : -1- install a Windows Application AP on the Linux Debian host of my domain. This seems to me the most problematic, since both Wine and Virtual Machine solutions are likely to be messy to implement, too deep inside the server system and/or to have CPU load limitations. So, there I am still in the blue sky, even perhaps black ! -2- Establish a graphical X Window Protocol from the AP to the X server of the authorized user : this seems to be a rather "common" thing, and solutions may be driven by the outcome of point 1 above. Microsoft Windows XP probably includes already this X protocol, is it true also for the other side, in the Web server ? The JCast WeirdX Java plugin would have to be installed inside each known potential user of my system, that could be difficult, unless this is an automatic download upon the connection request. However, a pure Java solution may ease the solution of point 1, but I don't know how ! -3- Grant access to the AP only for a given user, from a short list, upon his request, for a time limited session : the Linux host is certainely well equiped for that, the point to clarify is how, I, the administrator, can configure all that. I shall study in deepth the first advice of oiaohm. What is not clear for me is the relationships (and perhaps the operational advantages) there are between this AP authorization organization and my web site that resides just beside that. The authorized user navigates also between my web pages, and my website has already a registration system for specific member : so, is there something I can reuse or put in a common box ? Anyway, Martin and oiaohm, I thank you again, your inputs help me to better understand my problem : my AP is Windows-based, and may be I should subscribe a domain on a Windows server !
