Problem In SAVEASHTML

Hi Exparts,
I am getting a problem when i am doing SAVEASHTML. Actually in request form one boolean field is there. now if that boolean is true then i need to save that report in html format. Now for that what i am doing is In "OnPostReport" report trigger i am writing following code:
IF Bool1 THEN
BEGIN
//MESSAGE('hi);
Bool2 := REPORT.SAVEASHTML(50055,'C:\Test.html');
MESSAGE('Save Completed');
END;
Now the problem is when i am running the Report then this message is printing many times

If i am not saving return value of SAVEASHTML then message is showing many times & after some time it is giving error memory overflow.

Now if comment SAVEASHTML line then message is showing only once.

Before SAVEASHTML line if i put any message then also it showing many times in between when it is creating the html.

And if i comment SAVEASHTML both the message will show once.

Can anybody tell me what is problem?

Thanks & Regards
Mrinmay