web2pdm IIS server consumes memory

HD 2026-01-29

Hello,

After I use the web2pdm web client, navigate around, logout, the server memory keeps rising until it maxes out. I have to shutdown IIS for the memory to come back to normal.

Has anyone seen this before?

3005
            An unhandled exception has occurred.
            1/27/2026 8:22:11 PM
            1/28/2026 2:22:11 AM
            bec1cce9611d4fb48951f32d73e9ec43
            2403
            1
            0
            /LM/W3SVC/1/ROOT/SOLIDWORKSPDM-1-134140399090102352
            Full
            /SOLIDWORKSPDM
            C:\\inetpub\\wwwroot\\SOLIDWORKSPDM\\Web2\\
            SP-SOLIDWORKS

            6080
            w3wp.exe
            SP-SOLIDWORKS\\web2admin
            InvalidCastException
            Unable to cast COM object of type 'EPDM.Interop.epdm.EdmVault5Class' to interface type 'EPDM.Interop.epdm.IEdmVault8'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{9658BBDE-11F6-46B8-9A0B-06786D63B5C3}' failed due to the following error: The component is configured to use synchronization and this method call would cause a deadlock to occur. (Exception from HRESULT: 0x8004E005). at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, IntPtr& ppTarget, Boolean& pfNeedsRelease) at EPDM.Interop.epdm.EdmVault5Class.IEdmVault8_get_IsLoggedIn() at EPDMCompanionMVC.Utilities.EpdmHandleErrorAttribute.OnException(ExceptionContext filterContext) at System.Web.Mvc.ControllerActionInvoker.InvokeExceptionFilters(ControllerContext controllerContext, IList`1 filters, Exception exception) at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) at System.Web.Mvc.Controller.ExecuteCore() at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) at System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) at System.Web.Mvc.MvcHandler.<>c__DisplayClass6.<>c__DisplayClassb.b__5() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.b__0() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.b__7(IAsyncResult _) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End() at System.Web.Mvc.MvcHandler.<>c__DisplayClasse.b__d() at System.Web.Mvc.SecurityUtil.b__0(Action f) at System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
            http://sp-solidworks/solidworkspdm/SP-Vault/Design Files/Production/102501-105000
            /solidworkspdm/SP-Vault/Design Files/Production/102501-105000
            172.29.151.65
            SP-Vault
            True

            SP-SOLIDWORKS\\web2admin
            33
            SP-SOLIDWORKS\\web2admin
            True
            at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, IntPtr& ppTarget, Boolean& pfNeedsRelease) at EPDM.Interop.epdm.EdmVault5Class.IEdmVault8_get_IsLoggedIn() at EPDMCompanionMVC.Utilities.EpdmHandleErrorAttribute.OnException(ExceptionContext filterContext) at System.Web.Mvc.ControllerActionInvoker.InvokeExceptionFilters(ControllerContext controllerContext, IList`1 filters, Exception exception) at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) at System.Web.Mvc.Controller.ExecuteCore() at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) at System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) at System.Web.Mvc.MvcHandler.<>c__DisplayClass6.<>c__DisplayClassb.b__5() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.b__0() at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.b__7(IAsyncResult _) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End() at System.Web.Mvc.MvcHandler.<>c__DisplayClasse.b__d() at System.Web.Mvc.SecurityUtil.b__0(Action f) at System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

1634361404628053233
            5
            GDIObjectLeak
            Not available
            0
            w3wp.exe
            10.0.17763.1
            655360.1164115969
            5
            9ffd3e6345758





            \\\\?\\C:\\ProgramData\\Microsoft\\Windows\\WER\\Temp\\WERA82C.tmp.WERInternalMetadata.xml
            \\\\?\\C:\\ProgramData\\Microsoft\\Windows\\WER\\ReportArchive\\NonCritical_w3wp.exe_a22e58995215ea2bceb3144279786fc9797e3f4_00000000_28c3a955

            0
            eeb5d064-40e3-47f2-b593-fca5763ce093
            2147487744
            c470f2c78eb4102756ae6b09cd76acf1
            0