Move the whole VCE folder to your target path (to USB-drive, for example).
Place the empty vcs_cfg.ini file near the vcs_client.exe executable.
Run the vcs_client.exe from your USB-drive, go to Options dialog.
4.1 Check ON the option "Place all checkouts to executable Data path (useful for portable)".
4.2 Set "Temporary files path" to "Application executable path (if no access then system default will be used)".
New 0.16 version is here!
Portable mode
4.1 Check ON the option "Place all checkouts to executable Data path (useful for portable)".
4.2 Set "Temporary files path" to "Application executable path (if no access then system default will be used)".
For ease the portable installation - check for https://sourceforge.net/projects/portable.postpdm.p/ distributive.
Full version description
New features:
Fixed bug: