PCC WOPI Client is an IIS web application. There are two prerequisites needed for installation:

Host Name
The web application is installed and addressed by a unique host name. This is typically a DNS host name associated with the IP address of the server hosting PCC WOPI Client, e.g., pccsp.contoso.com. For evaluation purposes, a host name can be added to your Windows hosts file. For example, in C:\Windows\System32\Drivers\etc\hosts, add 127.0.0.1 pccsp for TCP/IPv4, or ::1 pccsp for TCP/IPv6.
Service Account
The web application is run as this specific user identity. This account requires Full Control to the physical path C:\ProgramData, which is where the application is installed. In addition, this account requires Full Control to read and write to SharePoint lists, and therefore must be added to the web application’s "User Policy".

Once you have met the prerequisites above in addition to the Dependencies & Requirements, complete the steps below:

1. Install PCC WOPI Client

Office Web Apps and PCC WOPI Client must be installed on the same port (80 or 443) (http or https).

Copy PccWopiClient.msi to PCC WOPI Client server
Run PccWopiClient.msi
Select either HTTP or SSL protocol to install PCC WOPI Client. This will configure PCC WOPI Client to run on port 80 or 443 respectively.
Enter IIS host name and service account for the PCC-WOPI IIS site

The install adds an entry to Programs and Features with the current version and build number.

2. Modify pcc.config

In the pcc.config file (c:\programdata\accusoft\prizm\PCC-WOPI\viewer-webtier\pcc.config), you configure the following:

Whether you're integrating with Accusoft Services or with on-premise PrizmDoc
Whether you're integrating with Office Web Apps
Whether you're deploying over https
Which file types you want to view with the Accusoft Services or PrizmDoc viewer

Accusoft Services Viewer or PrizmDoc Viewer

Accusoft Services:
By default, PrizmDoc for SharePoint is configured to use the Accusoft Services viewer. If you want to use the Accusoft Services viewer, you just need to insert the Accusoft Services API key that you obtained at https://www.accusoft.com/products/accusoft-services/portal/ in the ApiKey element.
PrizmDoc:
If you're connecting to on-premise PrizmDoc server instead (installed on a different machine), modify the following:
1. Replace localhost with PrizmDoc host name
2. If PrizmDoc server is running in multi-server mode: Change 18681 to 18682 (default port for multi-server)

Integrating with Office Web Apps

If you're integrating with Office Web Apps, specify the following:

owas-host-name (to support /hosting/discovery) - e.g., owas or owas.my-domain.com
The PCC-WOPI application pool identity must be added as a local Administrator to the Office Web Apps server.

Deploying over https

A SharePoint farm is configured to navigate the browser to a WOPI application over http or https. Therefore, Office Web Apps and PCC WOPI Client must be deployed on the same port (either port 80 or 443).

Change wopi-net-zone to internal-https if deploying over https.

File Types to View and Preview with Accusoft Services or PrizmDoc Viewer

Add or remove/comment <extension> elements to customize the file types to be viewed/previewed with Accusoft Services or PrizmDoc viewer.
If an extension is to be viewed, but not previewed, add attribute interactive-preview="false" to <extension> element.

Any time you make changes to pcc.config, you need to then update the WOPI bindings by running Update-PCCWOPIBindings.ps1 (see Setting up PrizmDoc for SharePoint for instructions).

Note the following pages served by the PCC-WOPI site:

Status page: <pcc-wopi-host-name>
Discovery page: <pcc-wopi-host-name>/hosting/discovery

Troubleshooting Tip: In case of error, refer to log files in folder: C:\ProgramData\Accusoft\Prizm\PCC-WOPI\Logs