Having H1B and B1 visa

[popeye77]

Dear Frens,


I am having a B1 (valid till 2006) from an Indian company. Also I have a H1B from a consulting company from US. I got the
H1B visa stamped on March 2005. Now in my current company they are asking me to travel on B1.

I belive if I travel on B1 they will cancel my H1B visa on the port of entry.

I have following questions.

* Can I hold two visa's
* Is it possible to travel to US (visit the company) without loosing H1B

Kind Regards,
Popeye