This article was previously published under Q271180
This article has been archived. It is offered "as is" and will no longer be updated.
When you are using user-defined callback on a Windows 2000-based client with some third-party Point-to-Point Protocol (PPP) server solutions, you may receive a "PPP 734" error message. The error message appears after you have accepted the callback number.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Size File name -------------------------------------- 13/10/2000 15:25 197,392 Rasppp.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.
After you dial in and are prompted for your callback number, you should see a one-line dialog box that is either blank or contains a previous number. After you type your number and press ENTER, if necessary, the error message occurs. If you can monitor the state of the modem, you see that the callback has actually been initiated from the server, but the remote access functionality is no longer in a position to answer the call.