= Introduction =

The NSI script in [https://github.com/OpenVPN/openvpn-build openvpn-build repository] makes use of [http://nsis.sourceforge.net/Environmental_Variables:_append,_prepend,_and_remove_entries EnvVarUpdate.nsh] to append ''OpenVPN\bin'' to the system-wide PATH variable on Windows. When using default NSIS builds, PATH can't be longer than 1024 characters or OpenVPN install destroys it. To support longer PATHs you need rebuild ''makensis'' with larger ''NSI_MAX_STRLEN''.

= Rebuilding NSIS on Ubuntu 12.04 =