Frequently Asked Questions

Chances are, others have the same questions that you do. Therefore, we have taken the common questions for Diskeeper, Sitekeeper and Undelete and provided the answers (and the questions) below in our Frequently Asked Questions section. Simply select the product below that you have questions about. If you can’t find the answer you’re looking for, you can submit a tech support question here.

Diskeeper | Sitekeeper | Undelete

Question
“Unable to create a node manager. Make sure mmcndmgr.dll is registered”
Answer
Usually, this means you have a damaged or improperly installed MMC. Find and delete 2 files, mmc.exe and mmcndmgr.dll, which should be in WINNT\system32 (under Windows NT), or in WINDOWS\system (under Windows 95/98/ME). Then use Add/Remove Programs to uninstall Diskeeper and reinstall it. This will force the reinstallation of the Microsoft Management Console, which should correct the problem.

Question

“Unable to create a node manager. Make sure mmcndmgr.dll is registered”

Answer

Usually, this means you have a damaged or improperly installed MMC. Find and delete 2 files, mmc.exe and mmcndmgr.dll, which should be in WINNT\system32 (under Windows NT), or in WINDOWS\system (under Windows 95/98/ME). Then use Add/Remove Programs to uninstall Diskeeper and reinstall it. This will force the reinstallation of the Microsoft Management Console, which should correct the problem.

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