I'm trying to add execute privelages to a user that I created on a MSSQL database. I have a administrative account which I used to create the new account:

it must be master.. or am I wrong?

yes, at least thats what I thought too...I tried adding it to master "ON master" but I guess I'm missing something. Since the only error that I'm getting is -1 which is "SQL_ERROR" I don't have any feedback on what the problem could be.

you might try these:

Privileges

SELECT: The privilege to retrieve data
INSERT: The privilege to insert new records.
UPDATE: The privilege to modify records.
DELETE: The privilege to delete records.
REFERENCES: The privileges to reference columns of a specific table
USAGE: The privileges to use domains, collations, characters sets etc. etc.

Example

GRANT SELECT,UPDATE ON master TO newuser

It has to be specifically EXECUTE...my user already has all entry and data manipulation privelages.

maybe these examples will help

The following example grants EXECUTE privilege on the stored command named ListUserTables to the user named Vivian.

GRANT EXECUTE ON COMMAND ListUserTables TO Vivian


The following example grants EXECUTE privilege on the stored procedure named ShowUsers to the users named Jenny and John, and the group Managers.

GRANT EXECUTE ON PROCEDURE ShowUsers TO Jenny, John, Managers


The following example grants EXECUTE privileges on all stored procedures in the InternetFunc to all present and future users using the PUBLIC keyword.

GRANT EXECUTE ON PROJECT InternetFunc TO PUBLIC