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invalid argument

About this tag
The tag 'invalid argument' on WindowsForum.com covers discussions about software errors where an invalid procedure call or argument is reported, often in the context of registry-related tools. In one thread, a user encounters a 'Critical Error #5, Invalid procedure call or argument' when running a diagnostic tool for ACT! software, which also fails to locate REGEDIT. The issue appears tied to specific Windows builds, with the tool working on build 7068 but failing on 7127. Troubleshooting involves terminating the program via Task Manager and investigating registry access problems. This tag is relevant for users debugging similar argument-related errors in Windows applications.
  1. R

    Windows 7 Regedit issue not seen previously

    I have a program that backs up the reg entries for another program (actdiag.exe for ACT! 6). It functions in 7068 but not in 7127. I didn't try it in 7100. I get this error. --------------------------- ACT! Data Diagnostic Tool --------------------------- Critical Error #5, "Invalid procedure...
    • ruggb
    • Thread
    • act backup diagnostics entry error installation invalid argument procedure program issues regedit task manager windows
    • Replies: 6
    • Forum: Windows Help and Support
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