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Title
Drag and Drop Functionality May Not Work on Vista Systems

Summary

When attempting to drag and drop files from an Explorer window to the InstallShield IDE you may receive errors or be unable to select the InstallShield window as a target for your file.

Symptoms

When attempting to drag and drop files from an Explorer window to the InstallShield IDE you may receive errors or be unable to select the InstallShield window as a target for your file.

Cause

This issue occurs when the Explorer window is not elevated. Explorer windows that are non-elevated cannot send messages to elevated processes. This is a limitation in the way that Windows Vista security enhancements are designed to prevent the possibility of exploiting system vulnerabilities.

Workaround

To work around this issue, elevate the Explorer window from which you wish to drag and drop files. This will allow the two windows to communicate properly.
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Drag and Drop Functionality May Not Work on Vista Systems