Files with the .map Extension Are Restricted to 128 KB in IIS (251219)
The information in this article applies to:
- Microsoft Internet Information Server 4.0
- Microsoft Internet Information Services 5.0
This article was previously published under Q251219 We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site: SYMPTOMS
If a file is larger than 128 KB and has the .map extension, you may receive one or more of the following error messages in the
browser: HTTP 500 - Internal server error HTTP/1.1 500 Server Error Network request is not supported
CAUSE The ".map" extension is reserved and intended for
association with server-side image maps in Internet Information Server (IIS) and Internet Information Services (IIS). The
size of these image maps is restricted to 128 KB. IIS enforces
this size limit on all files that have a file name extension of .map before
it loads the files.
STATUS
This behavior is by design.WORKAROUND To work around this problem, use image
maps that are smaller than 128 KB. MORE INFORMATION Other ASCII files that are larger than 128 KB are not
affected. If you have a file with another extension (for example, "a01"), and the file
larger than 128 KB, you will not have problems changing the mime type or
viewing the file in the browser.
| Modification Type: | Minor | Last Reviewed: | 6/23/2005 |
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| Keywords: | kbpending kbprb KB251219 |
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