Any user will get a 30-day trial once Foxit PDF IFilter is installed successfully.
After purchasing Foxit PDF IFilter, you will get a registration code or a key file (key.txt).
To have Foxit PDF IFilter worked successfully, you should activate or register it.
1) Run IFilterActivation.exe (C:Program FilesFoxit SoftwareFoxit PDF IFilterIFilterActivation.exe)
2) Copy and paste the registration code or full content of key.txt into the text field of the activation program.
3) Follow the rest of the on-screen instructions to complete the activation.
To make the license take effect, please perform corresponding commands on SharePoint Server or Exchange Server.
For SharePoint 2010
iisreset
net stop spsearch4
net start spsearch4
net stop osearch14
net start osearch14
For SharePoint 2007
iisreset
net stop spsearch
net start spsearch
net stop osearch
net start osearch
For Exchange Server
Stop-Service msftesql-Exchange -Force;
Start-Service MSExchangeSearch