PowerPoint automation C#

[asadhussain]

I am trying to automate conversion of powerpoint files to html. I have
developed this as a windows service and here is the conversion code:
....
PowerPoint.Application ppApp = new PowerPoint.Application();
PowerPoint.Presentation prsPres =
ppApp.Presentations.Open(targetFile,
Microsoft.Office.Core.MsoTriState.msoTrue,
Microsoft.Office.Core.MsoTriState.msoFalse,
Microsoft.Office.Core.MsoTriState.msoFalse);
string testStr = prsPres.Name;
string fileHTM = filePath.Replace(".ppt", ".html");
prsPres.SaveCopyAs(fileHTM, PowerPoint.PpSaveAsFileType.ppSaveAsHTML,
Microsoft.Office.Core.MsoTriState.msoTrue);
prsPres.Close();
ppApp.Quit();
....
The problem is that if i am not the original author of the application,
the application will ask me for a confirmation to save changes as
revisions.

Is there a way to disable revisions programatically since this
application is running as a service.