CVS client

Hello,

For my work, i'm very often on hotel... I want to work from there on a project, but i cannot install any software. So i'm looking for portable appications...

I found firefox and others for saving my setting locally, so i don't have to set up the VPN to my compagny...

Now i'm looking for the folowing programs:
- a portable cvs client.
- a portable winmerge (or related) (I found it by WinPenPack. is this trustable?)

Does it already exists or can i create one?
I absolutely cannot install any software on my laptop and there may not be settings saved to the harddisk...

tx