This article contains a list of the fixes included in Microsoft Proxy Server 2.0 Service Pack 1. (SP1)

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SP1 Requirements

Windows NT 4.0 Service Pack 4 or later must be installed before installing Proxy Server 2.0 SP1. For information about obtaining the latest service pack for Windows NT 4.0 and Windows NT Server, Terminal Server Edition, please see the following article in the Microsoft Knowledge Base: Proxy Server 2.0 SP1 supercedes the Proxy 2.0 Combined Hotfix. It is not necessary to install the Proxy 2.0 Combined Hotfix after Proxy Server 2.0 SP1 has been applied. For more information about the Proxy 2.0 Combined Hotfix, please see the following article in the Microsoft Knowledge Base:

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The articles listed below contain more information about issues that are resolved by Proxy Server 2.0 SP1. This service pack contains an uninstall feature that you can use to restore your system to its previous state. This service pack requires a reboot upon completion of installation.

Article ID	Title
176922 (http://support.microsoft.com/kb/176922/EN-US/)	Multiple IP Addresses Cause Dynamic Packet Filter to Fail
176958 (http://support.microsoft.com/kb/176958/EN-US/)	Socks Port Number Always Shows as Zero (0) in Permission List
177154 (http://support.microsoft.com/kb/177154/EN-US/)	Access Control Causes Reverse Proxy to Fail
177906 (http://support.microsoft.com/kb/177906/EN-US/)	Caching Does Not Work Under Reverse Proxying
183283 (http://support.microsoft.com/kb/183283/EN-US/)	IE via Proxy to IIS May Stop on Page with scripts
183749 (http://support.microsoft.com/kb/183749/EN-US/)	Access Violation in INETINFO:TerminateExtension
183755 (http://support.microsoft.com/kb/183755/EN-US/)	More Than One Internal IP with Socks Enabled Causes Dr. Watson
191414 (http://support.microsoft.com/kb/191414/EN-US/)	Delayed Response to HTTPS Requests w/ Proxy 2.0 over IIS 4.0
196444 (http://support.microsoft.com/kb/196444/EN-US/)	ODBC Error: The DSN May Be Incorrect
222948 (http://support.microsoft.com/kb/222948/EN-US/)	Cannot Download Large Files Using Proxy Server Combined Hotfix
225342 (http://support.microsoft.com/kb/225342/EN-US/)	Err Msg: The Specified Method Is Not Supported
228540 (http://support.microsoft.com/kb/228540/EN-US/)	Proxy Server Fix: Msplog.dll Changed to Record 4 Digit Year
228721 (http://support.microsoft.com/kb/228721/EN-US/)	Proxy Server Forwards Requests When Part of a Web Proxy Chain
228837 (http://support.microsoft.com/kb/228837/EN-US/)	Access Violation When Using Aventail Connect with SOCKS Proxy
231050 (http://support.microsoft.com/kb/231050/EN-US/)	Proxy Server 2.0 Log Records May Contain Unsafe Characters
233285 (http://support.microsoft.com/kb/233285/EN-US/)	Files Are Not Posted Using FTP "PUT" Command through SOCKS Proxy
238572 (http://support.microsoft.com/kb/238572/EN-US/)	FTP request through web proxy fails if file has no extension
238580 (http://support.microsoft.com/kb/238580/EN-US/)	Active cache stops working after 10 name resolution failures
238803 (http://support.microsoft.com/kb/238803/EN-US/)	Web Proxy Causes AV Allocating Large Block on Computer 1GB RAM
238808 (http://support.microsoft.com/kb/238808/EN-US/)	Socks Doesn't Log Connection Until Connection Is Closed
239495 (http://support.microsoft.com/kb/239495/EN-US/)	Proxy User May Receive Old Data from a Web Site
239086 (http://support.microsoft.com/kb/239086/EN-US/)	Proxy Can't Detect Local IP Range If Windows NT SP4 Is Installed

The following files are updated on Intel platforms:

Date	Size (bytes)	Name
06-01-1999	141,072	Mspadmin.exe
06-01-1999	58,128	Msphlpr.dll
06-01-1999	43,280	W3pcache.dll
06-01-1999	189,712	W3proxy.dll
06-01-1999	96,528	Wspsrv.exe
06-01-1999	121,104	Mspapi.dll
10-01-98	325,392	Mspui.dll
06-01-1999	62,224	Msplog.dll

The following files are updated on Alpha platforms:

Date	Size (bytes)	Name
06-01-1999	228,112	Mspadmin.exe
06-01-1999	96,016	Msphlpr.dll
06-01-1999	69,904	W3pcache.dll
06-01-1999	305,424	W3proxy.dll
06-01-1999	172,816	Wspsrv.exe
06-01-1999	173,328	Mspapi.dll
10-01-98	491,280	Mspui.dll
06-01-1999	103,184	Msplog.dll

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