The name of the CAB file identified in the CODEBASE URL is version-specific. Therefore, acugtax900.cab always contains the Version 9.0 Web runtime. However, you can implement your CODEBASE URL with a version string that refers to the version number as well as the build number.
If, for example, you deploy your Web site with the following CODEBASE value:
a control associated with the specified CLASSID will be used (if found), regardless of version. If no associated control is available on the client machine, the CAB file will be downloaded, installed, and executed.
On the other hand, if your Web site contains the following value:
users with an earlier version of the control will automatically be prompted to download the new version the next time they visit your Web site. The convention for the Web runtime control is therefore:
where M,m,r,b represent the Major, minor, release, and build numbers of the particular version of the control. This allows you to determine which version of the control is available to your end users.
To determine the version and build number of a Web runtime control, you can use the AboutBox method available in the object interface. See Web runtime object interface.
for more information. You can also obtain the version number by following these steps: