JSI Tip 10581. ISAPI and CGI applications hosted on IIS 6.0 on Windows Server 2003 perform poorly?

When ISAPI and CGI application hosted on IIS 6.0 on Windows Server 2003 send responses, you experience slow performance.

NOTE: These same applications perform properly when hosted on IIS 5.0.

This behavior is the result of a default buffer size for sends that is too small.

NOTE: You must install SP1 (Service Pack 1) for the resolution in this tip to work.

To resolve this performance issue:

1. Open a CMD.EXE window.

2. Type the following commands, pressing Enter after each line:

REG ADD HKLMSYSTEMCurrentControlSetServicesHTTPParameters /V MaxBufferedSendBytes /T REG_DWORD /F /D 65536
Iisreset /restart