Here was the one I used last year to get shengeng visa.

xxxx, 2007



Consulate General of German
(Address
Xxxxxxx
Xxxxxxxx

xxxxxxxxx)


Ref: (your name)


Gentlemen:

Attached is an application for a business visa for Mr. (your name). (Your name) has been an employee of (your company name) since (date) and currently holds the position of (your title).

Mr. XXXX is traveling on behalf of (Your company name) to attend business meetings referenced in the attached letter of invitation and is scheduled to leave for (German city) on (date).

We affirm that (your company name) will be financially responsible for Mr. xxxx during his trip to German and will guarantee his repatriation to the United States. He will in no way become dependent upon the government of German during the course of his brief visit.

Your consideration of this visa application would be greatly appreciated.

Sincerely,