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We use Redemption Version 5.21 initializing with RedemptionLoader and 32Bit Outlook.
This works perfect on most systems.

Problems occur on Systems, where a third Software is installed, which is using a customized Redemption.dll together with some Registry-Entries by the setup. 

[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}]
[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5]
@="Redemption Outlook Library. Version 4.5"

[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5\0]

[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5\0\win32]
@="C:\\Program Files (x86)\\...FullFilePathToCustom_dll
[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5\FLAGS]
@="0"

[HKEY_CLASSES_ROOT\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5\HELPDIR]
@="C:\\Program Files (x86)\\...DirectoryPath"

When deleting the identified Registry-Keys everything works fine.

With this third-Party software installed there are Problems accessing attachment.ContentID from singed E-Mails and also with decryptedmail = ((IRDOEncryptedMessage)mail).GetDecryptedMessage();

Conclusion:

Third party-Software adds something to registry, that disturbs the RedemptionLoader Initialisation Process. RedemptionLoader Initialisation is not so isolated from System as expected. Running our software independent from third-Party-Installation is a requirement.

Questions:

  1. How get rid of the fact, that third party Installations of redemption influence stability?
  2. Is this possible with the RedemptionLoader-Approach?
  3. Can loading side by side be a solution?
gReX
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  • may I can add some comInterfaceProxyStub in Manifest-File: https://stackoverflow.com/a/41146567 https://stackoverflow.com/a/1058978 – gReX Dec 17 '19 at 12:49
  • Those registry keys should not make any difference. What is the actual problem accessing the content id? Are you getting an error? – Dmitry Streblechenko Dec 17 '19 at 13:17
  • @DmitryStreblechenko I get a System.AccessViolationException, Attempted to read or write protected memory. This is often an indication that other memory is corrupt. But only with E-Mails which contain inline-Images – gReX Dec 17 '19 at 13:32
  • @DmitryStreblechenko If I delete this registry-Key the error ist gone. With this key i see in procMon process requesting Registry ReqQueryValue "HKCR\TypeLib\{2D5E2D34-BED5-4B9F-9793-A31E26E6806E}\4.5\0\win32\(Default)" and then creating FileMap to dll in Third-Party software. – gReX Dec 17 '19 at 13:43
  • Please send a message to redemption (at) dimastr (dot) com and I will send you the debug version of Redemption. – Dmitry Streblechenko Dec 17 '19 at 21:03

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