Application virtualization
 

Hi all,

We've been helping some local organizations to move from privative
software to FOSS. At the moment we're kind of stuck with a special case:

This organization developed their own internal business management
system software (budgets, projects, etc.) using MS products (Visual
Basic accessing a SQL Server via ODBC). They're using this software in
their LAN desktops and now they want to use it from outside their
private network via dial-up connections. We've been thinking about many
options:

1. Using the same software from the outside (via VPN)
Unsuitable because the client-server data transfer (via ODBC) is very
heavy and they have very limited bandwidth

2. Using a VNC-like solution
Unsuitable because there's no way to enable two or more users to use the
software concurrently and very limited bandwidth

We were wondering if there's any experience out there in this kind of
matter. As far as now we're looking for a solution similar to what a
"Citrix Presentation Server" can do.

Thanks in advance for any information that you may share with us.

Regards,
JT

Moved to general, doesn't seam to be a Linux - Software question.