Controlling the transfer of terminal server data

A computer system, comprising:

• one or more processors;
• system memory;
• and
• one or more computer-readable media having stored thereon a terminal server flow control module, the terminal server flow control module being including in a communication stack situated between a terminal server protocol and a transport/network protocol, the terminal server flow control module configured to intercept communication between the terminal server protocol and a transport/network protocol to perform the following:
• receive a first request to transfer terminal server data for a first application layer module, the first application layer module associated with a first priority;
• determine that current bandwidth pressure has caused any buffers configured for transferring terminal server data to be in use;
• receive a second request to transfer terminal server data for a second application layer module, the second application layer module associated with a second priority;
• determine that the first request and the second request are in contention for the next buffer that is freed up;
• calculate the number of bytes charged for application layer modules having the first priority during at least the current bandwidth pressure;
• calculate the number of bytes charged for application layer modules having the second priority during at least the current bandwidth pressure;
• detect that a buffer has been freed up;
• compare the number of bytes charged for application layer modules having the first priority to the number of bytes charged for application layer modules having the second priority;
• and
• appropriately allocating the buffer to transfer terminal server data based on the results of the comparison.