PRB: Server Object Error "ASP 0177:800401f3" Occurs When You Browse to a WebClass Application (258932)

The information in this article applies to:

Microsoft Internet Information Server 3.0
Microsoft Internet Information Server 4.0
Microsoft Internet Information Server 5.0
Microsoft Visual Basic Enterprise Edition for Windows 6.0
Microsoft Visual Basic Professional Edition for Windows 6.0

This article was previously published under Q258932

SYMPTOMS

When you browse to your WebClass application (Internet Information Server application), you receive the following error message in your browser:

Server object error 'ASP 0177 : 800401f3'
Server.CreateObject failed
YourWebClass.asp, line 8
Invalid class string

where line 8 contains the following code:

Set Application("~WC~WebClassManager") = Server.CreateObject("WebClassRuntime.WebClassManager")

CAUSE

The WebClass Runtime file (Mswcrun.dll) does not exist on your Web server, or WebClass Runtime is not registered. WebClass Runtime is one of the system files required for your WebClass applications to function properly.

RESOLUTION

Verify that WebClass Runtime exists on your Web server. If it does not exist, use the Package and Deployment Wizard to create a standard setup package. Run the setup package on your Web server to install and register the necessary system files, which includes WebClass Runtime.

If WebClass Runtime does exist on your Web server, you must register it. To do so, type the following at a command prompt:

regsvr32 "C:\Program Files\Common Files\Designer\mswcrun.dll"

NOTE: The authenticating user (IUSR_machinename if using anonymous access) needs to have Read and Execute NTFS permissions on Mswcrun.dll.

STATUS

This behavior is by design.

REFERENCES

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

242550 INFO: System Files Needed to Run WebClasses (IIS Applications)

Modification Type:	Major	Last Reviewed:	5/29/2003
Keywords:	kberrmsg kbprb kbWebClasses KB258932