17 months seems pretty excessive for implementing a single, well-defined process, but there are a lot of potentially complicating factors. Is the VAR stuck waiting on something from your organization, or are they simply being unresponsive? Perhaps the scope of the initial project is too ambitious?

With any large project, it's important to have a regular (usually weekly or bi-weekly) meeting of the key team members to quickly let everyone know what progress has been made since the last meeting and what the next steps are to move forward. If those aren't happening or if the meetings aren't productive, then the project manager needs to find out why.

Another thing to consider is finding a quick win. If your organization spends too long seeing Laserfiche as a lumbering project that never got off the ground, you're going to face a much harder time convincing your teammates to adapt their processes when you do get it moving.