Windows 7上的Outlook Redemption出现意外行为

我正在将我的开发pc从Windows XP（Professional、SP3、x86）迁移到Windows 7（Professional、SP1、x86）。我正在处理的应用程序的来源在两台机器上完全相同，但在启动RDOSession时，在Windows7机器上会失败。

// Initialize the session.
_session = new RDOSession(); // Throws exception...
_session.LogonExchangeMailbox("mailbox@mydomain.com", "mail.mydomain.com");

这段代码导致以下异常：

System.Runtime.InteropServices.COMException was caught
  Message=Creating an instance of the COM component with CLSID {29AB7A12-B531-450E-8F7A-EA94C2F3C05F} from the IClassFactory failed due to the following error: 8004010e.
  Source=mscorlib
  ErrorCode=-2147221234
  StackTrace:
       at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
       at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
       at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
       at System.Activator.CreateInstance(Type type, Boolean nonPublic)
       at System.Activator.CreateInstance(Type type)
       at (...).DataAccess.ExchangeManager..ctor(ExchangeConfigurationSettings configurationSettings) in D:'Development'WIP'(...)'DataAccess'Exchange'ExchangeManager.cs:line 57

很明显，我直接想到了MAPI/CDO，所以我仔细检查了一下，并在Office2007和2010中尝试了Win7，但没有成功。我目前的配置如下：

• WinXP:VS2010SP1，无Office，但已安装Exchange MAPI和CDO和赎回版本5.5.0.3218
• Win7:VS2010SP1，无Office，但安装了Exchange MAPI、CDO和Redemption版本5.5.0.3218

有人知道线索吗？提前感谢！