As of 6/14/2011 Microsoft released a critical update (KB2530548) for Internet Explorer 9 that addresses the issue stated below, and manually adding a registry key may no longer be required.
Also, PaperVision Enterprise version R75 no longer requires this registry change.
When a user attempts to use PaperVision Enterprise ActiveX controls, such as the document viewer, workflow viewer, and administrative controls, Internet Explorer 9 appears to lock up and can only be closed via Task Manager.
PVESearchURL is used to automatically log users into PaperVision Enterprise and perform a search using a custom URL. Before version R70, a user name and password pair or a valid session ID was needed to log in. Starting with version R70, users can now submit their request through the Authentication Gateway so that no authentication information is required.
Users receive the following error when attempting to login to PaperVision Enterprise: Error: -2147217900 - Could not allocate space for object PVDM_SECTRACKGEN_1 in database PAPERVISIONDM because the 'PRIMARY' filegroup is full. (Source: LoginUserEx2.LoginUser.