Runtime error 255 at 74FE35D2 occurs when try to install application on ICA session

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Article ID: CTX579751

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Updated On:

Description

Some special applications cannot be installed on the ICA session.

RDP or Hypervisor VM Console does not have this problem. 
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Resolution

For 1912 LTSR:
- Copy "C:\Program Files\Citrix\ICAService\picaddapi.dll" to "C:\Windows\SysWOW64"
- Copy "C:\Program Files\Citrix\ICAService\picaddapi64.dll" to "C:\Windows\System32"

For 2203 LTSR:
- Copy "C:\Program Files (x86)\Citrix\HDX\bin\PicaDdApi.dll" to "C:\Windows\SysWOW64"
- Copy "C:\Program Files\Citrix\HDX\bin\PicaDdApi64.dll" to "C:\Windows\System32"

Problem Cause

The 3rd-party program makes somewhat restrictions on the Microsoft dll searching mechanism upon loading the library, causing Visual C++ Runtime loads PicaDdApi.dll to fail.