TrackRevisions method not available error

Hi,

We are working on word customization using VSTO 2005. In our code for some functionality we need to enable and disable trackchanges.

for that we are doing something like this,

if (this.TrackRevisions == true)

{

isTrackChangesOn = true;

this.TrackRevisions = false;

}

// Some functionality

if (isTrackChangesOn == true) this.TrackRevisions = true;

The above said is working fine. But when i use Find.. Replace Dialog and try to replace text within document, the following error is thrown at the line,

if (this.TrackRevisions == true)