Hi DAW:

Trying to add a new Connection to a DB2 database, under WebOrderMobile sample workspace, received this error when clicked in the "Select or enter a DB2 Data Source" combo-box.

Code:
C:\Program Files (x86)\DataFlex 19.0\Bin\Studio.exe
Impossível inicializar. Cannot allocate environment handle.

Error: 12290

Please report this error to Data Access Corporation

GET_REGISTERDRIVER (7955) - oConnection (592) - at address 40595
GET_LOADCURRENTDRIVER (15820) - oModifyConnections (1844) - at address 177460
GET_LOADCURRENTDRIVER (15820) - oDB2Group (1886) - in native code
GET_LOADCURRENTDRIVER (15820) - oDB2DSNCombo (1887) - in native code
MSG_FILL_LIST (4892) - oDB2DSNCombo (1887) - at address 177249
MSG_ONDROPDOWN (4573) - oDB2DSNCombo (1887) - at address 177269
MSG_COMMAND (648) - oDB2DSNCombo (1887) - at address 6925
MSG_CREATE_DIALOG (711) - oModifyConnections (1844) - in native code
MSG_CREATE_DIALOG (711) - oModifyConnections (1844) - at address 1489
MSG_ACTIVATE (117) - oModifyConnections (1844) - in native code
MSG_ACTIVATE (117) - oModifyConnections (1844) - at address 2257
MSG_POPUP (290) - oModifyConnections (1844) - in native code
GET_MODIFYCONNECTION (15830) - oModifyConnections (1844) - at address 177681
MSG_MODIFYCONNECTION (15832) - oConnectionsDg (1900) - at address 177995
MSG_MODIFYCONNECTION (15832) - oAdd_Btn (2018) - in native code
MSG_ONCLICK (4639) - oAdd_Btn (2018) - at address 177842
MSG_COMMAND (648) - oAdd_Btn (2018) - in native code
MSG_CREATE_DIALOG (711) - oConnectionsDg (1900) - in native code
MSG_CREATE_DIALOG (711) - oConnectionsDg (1900) - at address 1489
MSG_ACTIVATE (117) - oConnectionsDg (1900) - in native code
MSG_ACTIVATE (117) - oConnectionsDg (1900) - at address 2257
MSG_POPUP (290) - oConnectionsDg (1900) - in native code
GET_EXECUTE@0 (12154) - oStudioCommand (783) - at address 141440
MSG_ONCOMMAND@1 (12171) - oActionManager (633) - at address 87880
MSG_REQUESTCOMMAND (15239) - oConnectionManager_itm (996) - at address 160841
[start] - at address 247331
Everything was working fine until yesterday. But today I had to Install a new version of DB2. I had DB2 10.5 installed, and need to install DB2 11.1 and keep both versions running simultaneously. It Looks DAW CK stuff is not able to handle DB2 with multiple copies installed and running in parallel.

It also affected previous Workspaces created under 18.x, witch had connections properly configured to DB2 10.5 databases. On 18.2 Studio connection wizard,
you don't receive any error when click on DNS combo-box, but the list becomes empty, and the 'Test connection' button receives an error even if you try to type the database name manually. And finally, when trying to open the table inside the studio, you get:
Code:
Cannot open table number: 254. Database access has been disabled in this workspace due to a database login failure. You should close this workspace and fix the database login problem before continuing.
Please, need urgent assistance on this. Having multiple versions of database server running at same server is pretty common in a real world.

Regards